Free 1 Die Roll Calculator - Calculates the probability for the following events in the roll of one fair dice (1 dice roll calculator or 1 die roll calculator):
* Probability of any total from (1-6)
* Probability of the total being less than, less than or equal to, greater than, or greater than or equal to (1-6)
* The total being even
* The total being odd
* The total being a prime number
* The total being a non-prime number
* Rolling a list of numbers i.e. (2,5,6)
* Simulate (n) Monte Carlo die simulations.
1 die calculator

Free 1089 Number Trick Calculator - Demonstrates the 1089 number trick for a 3 digit number that you enter

Free 2 dice roll Calculator - Calculates the probability for the following events in a pair of fair dice rolls:
* Probability of any sum from (2-12)
* Probability of the sum being less than, less than or equal to, greater than, or greater than or equal to (2-12)
* The sum being even
* The sum being odd
* The sum being a prime number
* The sum being a non-prime number
* Rolling a list of numbers i.e. (2,5,6,12)
* Simulate (n) Monte Carlo two die simulations. 2 dice calculator

Free 2 number Word Problems Calculator - This calculator handles word problems in the format below:
* Two numbers have a sum of 70 and a product of 1189 What are the numbers?
* Two numbers have a sum of 70. Their difference 32

Free Absolute Difference Calculator - Calculates the absolute difference between 2 numbers. Also known as positive difference

Free Absolute Value Calculator - Add, subtract, multiply or divide any two numbers with absolute value signs.

Free Accuracy and Precision Calculator - Given an integer or decimal, this determines the precision and accuracy (scale)

Free Activity Method Depreciation Calculator - Calculates the following: Depreciable Base, Depreciation per Unit, Depreciation for Period

Free Addition and Multiplication Multiples Calculator - Shows all addition and multiplication multiples up to 20 for a positive integer

Free Addition and Multiplication Tables (Times Tables) Calculator - Shows the color coded addition or multiplication table entries and answer for any 2 numbers 1-15.

Free Addition of 3 or more numbers Calculator - This calculator performs addition with carrying and an addition grid for 3 or more numbers.

Free Addition Property Of Inequality Calculator - Demonstrates the Addition Property Of Inequality. Numerical Properties

Free Additive Identity Property Calculator - Displays the line by line proof for the additive identity property Numerical Properties

Free Additive Inverse Property Calculator - Demonstrates the Additive Inverse property using a number. A + (-A) = 0 Numerical Properties

Free Algebraic Expressions Calculator - This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them(increased,product,decreased,divided,times) Also known as Mathematical phrases

Free Antilog Calculator - Calculates the antilog of a number using a base.

Free Associative Property Calculator - Demonstrates the associative property using 3 numbers. Covers the Associative Property of Addition and Associative Property of Multiplication. Also known as the Associative Law of Addition and Associative Law of Multiplication Numerical Properties

Free Automorphic Number Calculator - This calculator determines the nth automorphic number

Free Babylonian Method Calculator - Determines the square root of a number using the Babylonian Method.

Free Bakshali Method Calculator - Calculates the square root of a positive integer using the Bakshali Method

Free Balance with Interest Calculator - Calculates the final account balance given a beginning balance, interest rate, and interest crediting period.

Free Balancing Equations Calculator - Given 4 numbers, this will use the four operations: addition, subtraction, multiplication, or division to balance the equations if possible.

Free Base Conversion Operations Calculator - This calculator allows you to add, subtract, multiply, and divide two numbers with different bases.

Free Basic Math Operations Calculator - Given 2 numbers, this performs the following arithmetic operations:
* Addition (Adding) (+)
* Subtraction (Subtracting) (-)
* Multiplication (Multiplying) (x)
* Long division (Dividing) with a remainder (÷)
* Long division to decimal places (÷)
* Partial Sums (Shortcut Sums)
* Short Division
* Duplication and Mediation

Free Basic Statistics Calculator - Given a number set, and an optional probability set, this calculates the following statistical items:
Expected Value
Mean = μ
Variance = σ²
Standard Deviation = σ
Standard Error of the Mean
Skewness
Mid-Range
Average Deviation (Mean Absolute Deviation)
Median
Mode
Range
Pearsons Skewness Coefficients
Entropy
Upper Quartile (hinge) (75th Percentile)
Lower Quartile (hinge) (25th Percentile)
InnerQuartile Range
Inner Fences (Lower Inner Fence and Upper Inner Fence)
Outer Fences (Lower Outer Fence and Upper Outer Fence)
Suspect Outliers
Highly Suspect Outliers
Stem and Leaf Plot
Ranked Data Set
Central Tendency Items such as Harmonic Mean and Geometric Mean and Mid-Range
Root Mean Square
Weighted Average (Weighted Mean)
Frequency Distribution
Successive Ratio

Free Bernoulli Trials Calculator - Given a success probability p and a number of trials (n), this will simulate Bernoulli Trials and offer analysis using the Bernoulli Distribution. Also calculates the skewness, kurtosis, and entropy

Free Binomial Distribution Calculator - Calculates the probability of 3 separate events that follow a binomial distribution. It calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, standard deviation, skewness and kurtosis.
Also calculates the normal approximation to the binomial distribution with and without the continuity correction factor
Calculates moment number t using the moment generating function

Free Bit Shifting Calculator - Performs a bit shift left or a bit shift right on a decimal or binary number

Free Bitwise Operations Calculator - Performs bitwise operations between two decimal or binary numbers:
* Bitwise OR
* Bitwise AND
* Bitwise XOR

Also performs Bitwise NOT on 1 number

Free Blackjack Card Counting Calculator - This calculator allows you to enter a number of players with one deck of cards by simulating an opening blackjack deal using card counting methods.

Free Braille Translator Calculator - Given a phrase with letters, numbers, and most punctuation symbols, the calculator will perform the following duties:
1) Translate that phrase to Braille
2) Calculate the number of dots in the message
3) Calculate the number of empty spaces in the message

Free Ceiling Calculator - Calculates the ceiling of a number

Free Circular Permutation Calculator - Calculates the following:
Number of ways to arrange n distinct items arranged on a circle

Free Clock Gain and Loss Calculator - This calculates the gain/loss in seconds of a clock over a certain period of time.

Free Closest Number Calculator - Calculates the closest number of your choice from a given set of numbers

Free Collatz Conjecture Calculator - Takes any natural number using the Collatz Conjecture and reduces it down to 1.

Free Collinear Points that form Unique Lines Calculator - Solves the word problem, how many lines can be formed from (n) points no 3 of which are collinear.

Free Commutative Property Calculator - Demonstrates the commutative property of addition and the commutative property of multiplication using 3 numbers. Numerical Properties

Free Comparison of Numbers Calculator - Compares two numbers and checks to see if they are equal to one another, if the first number is greater than the second number, or the first number is less than the second number. Minimum and maximum.

Free Complex Number Operations Calculator - Given two numbers in complex number notation, this calculator:
1) Adds (complex number addition), Subtracts (complex number subtraction), Multiplies (complex number multiplication), or Divides (complex number division) any 2 complex numbers in the form a + bi and c + di where i = √-1.
2) Determines the Square Root of a complex number denoted as √a + bi
3) Absolute Value of a Complex Number |a + bi|
4) Conjugate of a complex number a + bi

Free Composite Number Calculator - This calculator determines the nth composite number. Helps you generate composite numbers.

Free Compound Interest and Annuity Table Calculator - Given an interest rate (i), number of periods to display (n), and number of digits to round (r), this calculator produces a compound interest table. It shows the values for the following 4 compound interest annuity functions from time 1 to (n) rounded to (r) digits:
vⁿ
d
(1 + i)ⁿ
a_n|
s_n|
ä_n|i
s_n|i
Force of Interest δⁿ

Free Consecutive Integer Word Problems Calculator - Calculates the word problem for what two consecutive integers, if summed up or multiplied together, equal a number entered.

Free Counting Calculator - Counts up from a number to another number using a factor
Counts down from one number to another number using a factor. Also known as skip counting.

Free Counting on a Number Line Calculator - Shows addition or subtraction by moving left or right on a number line.

Free Cox-Ross-Rubenstein Pricing Calculator - Using the Cox-Ross-Rubenstein method, this calculates the call price and put price of an option.

Free Date Information Calculator - This calculator takes a date in mm/dd/yyyy format, and gives the following information about it:
* Weekday
* Day number in the year
* Week number in the year
* Number of days in the month containing that date
* Leap Year (Yes or No)
* Zodiac Sign
* Julian Date

Free Decagonal Number Calculator - This calculator determines the nth decagonal number

Free Decompose Fraction Calculator - Decomposes a Fraction. Shows you the work behind decomposing a fraction

Free Decompose Number Pairs Calculator - Decomposes a number into number pairs of sums.

Free Derangements - Subfactorials Calculator - Calculates the number of derangements/subfactorial !n.

Free Digit Problems Calculator - Determines how many (n) digit numbers can be formed based on a variety of criteria.

Free Digit Product Calculator - Calculates a digit product for a number.

Free Digit Sum Calculator - Calculates a digit sum and reduced digit sum for a number.

Free Distributive Property Calculator - Demonstrates the distributive property using 3 numbers. Numerical Properties

Free Divisibility Calculator - Shows the divisibility of a number by seeing if it is divisible by (2,3,4,5,6,7,8,9,10,11)

Free Duplication and Mediation Calculator - Multiplies two numbers using Duplication and Mediation

Free Effective Annual Yield Rate Calculator - Figures out the effective annual yield rate of interest entered by compounding daily, weekly, semi-monthly, monthly, quarterly, semi-annually, and continuously.

Free Estimate Square Roots Calculator - Estimates the square root of a number

Free Estimate Sums Calculator - Estimates the sum of 2 numbers.

Free Estimating Reasonableness of Products Calculator - Given a product of 2 numbers and an estimated product, this will check to see if it is reasonable

Free Euclids Algorithm and Euclids Extended Algorithm Calculator - Given 2 numbers a and b, this calculates the following
1) The Greatest Common Divisor (GCD) using Euclids Algorithm
2) x and y in Bézouts Identity ax + by = d using Euclids Extended Algorithm Extended Euclidean Algorithm

Free Eulers Totient (φ) Calculator - Given a positive integer (n), this calculates Euler's totient, also known as φ

Free Even Numbers Calculator - Shows a set amount of even numbers and cumulative sum

Free Expanded Notation Calculator - Writes the expanded notation for a number.

Free Factorials Calculator - Calculates the following factorial items:
* A factorial of one number such as n!
* A factorial of a numerator divided by a factorial of a denominator such as n!m!/a!b!
* Double Factorials such as n!!
* Stirlings Approximation for n!

Free Factoring and Root Finding Calculator - This calculator factors a binomial including all 26 variables (a-z) using the following factoring principles:
* Difference of Squares
* Sum of Cubes
* Difference of Cubes
* Binomial Expansions
* Quadratics
* Factor by Grouping
* Common Term
This calculator also uses the Rational Root Theorem (Rational Zero Theorem) to determine potential roots
* Factors and simplifies Rational Expressions of one fraction
* Determines the number of potential positive and negative roots using Descarte’s Rule of Signs

Free Factorization Calculator - Given a positive integer, this calculates the following for that number:
1) Factor pairs and prime factorization and prime power decomposition
2) Factors and Proper Factors 3) Aliquot Sum

Free Fermats Little Theorem Calculator - For any integer a and a prime number p, this demonstrates Fermats Little Theorem.

Free Fibonacci Sequence Calculator - Generates a list of the first 100 Fibonacci numbers. Also shows how to generate the nth Fibonacci number using Binet's Formula

Free Find two numbers word problems Calculator - Given two numbers with a sum of s where one number is n greater than another, this calculator determines both numbers.

Free Floor Calculator - Determines the floor of a number

Free Fraction Cancellation Property Calculator - Demonstrates the Fraction Cancellation Property also known as Cancellation Property of Fractions Numerical Properties

Free Fractions and Mixed Numbers Calculator - Given (improper fractions, proper fraction, mixed numbers, or whole numbers), this performs the following operations:
* Addition (Adding)
* Subtraction (Subtracting)
* Positive Difference (Absolute Value of the Difference)
* Multiplication (Multiplying)
* Division (Dividing: complex fraction division is included)
* Compare Fractions
* Simplifying of proper and improper fractions as well as mixed numbers. Fractions will be reduced down as far as possible (Reducing Fractions).
* Reciprocal of a Fraction
* Find all fractions between two fractions
* reduce a fraction

Free Fundamental Rule of Counting Calculator - Given a set of items, this calculates the total number of groups/choices that can be formed using the rule of product.

Free Gamma Constant γ Calculator - This calculator generates 5000 iterations for the development of the gamma constant γ

Free Geometric Distribution Calculator - Using a geometric distribution, it calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, standard deviation, skewness, and kurtosis.
Calculates moment number t using the moment generating function

Free Grade Point Average (GPA) Calculator - Calculates Grade Point Average (GPA) based on letter grades entered.

Free Grand Mean Calculator - Calculates the grand mean of a set of number sets.

Free Greatest Common Factor and Least Common Multiple Calculator - Given 2 or 3 numbers, the calculator determines the following:
* Greatest Common Factor (GCF) using Factor Pairs
* Rewrite Sum using the Distributive Property and factoring out the GCF
* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs
* GCF using the method of Successive Division
* GCF using the Prime Factorization method
* Determine if the numbers are coprime and twin prime

Free Half-Life of a Substance Calculator - Given a half-life (h) of a substance at time t, this determines the new substance size at time t_n, otherwise known as decay.

Free Heptagonal Number Calculator - This calculator determines the nth heptagonal number

Free Herfindahl Index Calculator - Given a market share of a set of companies, this determines the Herfindahl Index and Normalized Herfindahl Index.

Free Hexagonal Number Calculator - This calculator determines the nth hexagonal number

Free Imaginary Numbers Calculator - Calculates the imaginary number i where i = √-1 raised to any integer power as well as the product of imaginary numbers of quotient of imaginary numbers

Free Inclusive Number Word Problems Calculator - Given an integer A and an integer B, this calculates the following inclusive word problem questions:
1) The Average of all numbers inclusive from A to B
2) The Count of all numbers inclusive from A to B
3) The Sum of all numbers inclusive from A to B

Free Index Form Calculator - Writes a number using index form notation

Free Int Function Calculator - Determines the integer of a number

Free Integers Between Calculator - This calculator determines all integers between two numbers (Decimals)

Free Irrational Numbers Between Calculator - This calculator determines all irrational numbers between two numbers

Free Lagrange Four Square Theorem (Bachet Conjecture) Calculator - Builds the Lagrange Theorem Notation (Bachet Conjecture) for any natural number using the Sum of four squares.

Largest Possible Number Calculator - Calculates the largest possible number from a given set of digits

Free Letter Arrangements in a Word Calculator - Given a word, this determines the number of unique arrangements of letters in the word.

Free Linear Congruential Generator Calculator - Using the linear congruential generator algorithm, this generates a list of random numbers based on your inputs

Free Logarithms and Natural Logarithms and Eulers Constant (e) Calculator - This calculator does the following:
* Takes the Natural Log base e of a number x Ln(x) → log_ex
* Raises e to a power of y, e^y
* Performs the change of base rule on log_b(x)
* Solves equations in the form b^cx = d where b, c, and d are constants and x is any variable a-z
* Solves equations in the form ce^dx=b where b, c, and d are constants, e is Eulers Constant = 2.71828182846, and x is any variable a-z
* Exponential form to logarithmic form for expressions such as 5³ = 125 to logarithmic form
* Logarithmic form to exponential form for expressions such as Log₅125 = 3

Free Lotto Drawing Probability Calculator - Given a lotto drawing with a Pick(x) out of (y) total choices, this calculates the probability of winning that lottery picking all (x) correct numbers.

Free Lucas Numbers Calculator - Generates a list of the first 100 Lucas numbers.

Free Missing Average Calculator - Given a set of scores and an average, this calculates the next score necessary to attain that average

Free Modular Exponentiation and Successive Squaring Calculator - Solves xⁿ mod p using the following methods:
* Modular Exponentiation
* Successive Squaring

Free Morse Code Translator Calculator - Given a phrase with letters, numbers, and most punctuation symbols, the calculator will perform the following duties:
1) Translate that phrase to Morse Code.
2) Translate the Morse Code to a Dit-Dah message
3) Calculate the number of dots in the message
4) Calculate the number of dashes in the message

This also translates from Morse Code back to English.

Free Multiplication Array Calculator - This allows you to enter pictorials using * symbols to represent multiplication

Free Multiplication Comparison Calculator - Evaluates a multiplication comparison

Free Multiplication Property Of Inequality Calculator - Demonstrates the Multiplication Property Of Inequality Numerical Properties

Free Multiplicative Identity Property Calculator - Demonstrates the Multiplicative Identity property using a number. Numerical Properties

Free Multiplicative Inverse Property Calculator - Demonstrates the Multiplicative Inverse property using a number. Numerical Properties

Free N-Grams Calculator - Takes a phrase and displays chracter unigrams, character bigrams, character trigrams, and character n-grams as well as word unigrams, word bigrams, word trigrams, and word n-grams. (ngrams)
Also performs frequency analysis (number of instances of each letter)

Free Natural Logarithm Table Calculator - Generates a natural logarithm table for the first (n) numbers rounded to (r) digits

Free Natural Numbers Calculator - Shows a set amount of natural numbers and cumulative sum

Free Nominal Yield Calculator - Given an effective annual rate of interest based on a compounding period, this determines the nominal yield.

Free Nonagonal Number Calculator - This calculator determines the nth nonagonal number

Free Number Bonds Calculator - Adds or subtracts 2 numbers and using grouping by 10 or 100. Also called number bonds or addition facts. Multiplies two numbers using tape diagrams.

Free Number Info Calculator - Calculates number info for a positive integer

Free Number Line Calculator - Counts from a point going left and right on a number line

Free Number Line Midpoint Calculator - Calculates a midpoint between 2 points on a number line or finds the second endpoint if one endpoint and midpoint are given.

Free Number Property Calculator - This calculator determines if an integer you entered has any of the following properties:
* Even Numbers or Odd Numbers (Parity Function or even-odd numbers)
* Evil Numbers or Odious Numbers
* Perfect Numbers, Abundant Numbers, or Deficient Numbers
* Triangular Numbers
* Prime Numbers or Composite Numbers
* Automorphic (Curious)
* Undulating Numbers
* Square Numbers
* Cube Numbers
* Palindrome Numbers
* Repunit Numbers
* Apocalyptic Power
* Pentagonal
* Tetrahedral (Pyramidal)
* Narcissistic (Plus Perfect)
* Catalan
* Repunit

Free Numbers Word Problems Calculator - Solves various basic math and algebra word problems with numbers

Free Octagonal Number Calculator - This calculator determines the nth octagonal number

Free Odd Numbers Calculator - Shows a set amount of odd numbers and cumulative sum

Free Opposite Numbers Calculator - Given a positive or negative integer (n), this calculates the opposite number of n

Free Ordering Numbers Calculator - Given a list of numbers, this will order the list ascending (lowest to highest or least to greatest) or descending (highest to lowest or greatest to least)

Free Ordinal Number Calculator - This calculator determines the ordinal number of an integer

Free Partial Quotient Calculator - Divides 2 numbers using the Partial Quotient

Free Partial Sum Calculator - Calculates a partial sum for 2 numbers.

Free Pascal-Floyd-Leibniz Triangle Calculator - This generates the first (n) rows of the following triangles:
Pascal's Triangle
Leibniz's Harmonic Triangle
Floyd's Triangle

Free Pentagonal Number Calculator - This calculator determines the nth pentagonal number

Free Percent Math Calculator - Simplifies expressions involving numbers and percents with respect to addition and subtraction

Free Percentage-Decimal-Fraction Relations Calculator - Calculates the relational items between a fraction, a decimal (including repeating decimal and terminating decimal), a percentage, and the numerator and denominator piece of that fraction. Also calculates the percentage change going from one number to another or the amount increase or decrease of a percentage above/below a number. Round decimals. decimals into fractions

Free Permutations and Combinations Calculator - Calculates the following:
Number of permutation(s) of n items arranged in r ways = _nP_r
Number of combination(s) of n items arranged in r unique ways = _nC_r including subsets of sets

Free Phone Number Translator Calculator - Given a phone number with letters in it, this calculator will determine the numeric phone number for you to dial.

Free Place Value Calculator - Given a whole number or a decimal, the calculator will perform place number analysis on each place in your number.
For the whole and decimal portion, the calculator goes out to the 100 trillion mark.

Free Poisson Distribution Calculator - Calculates the probability of 3 separate events that follow a poisson distribution.
It calculates the probability of exactly k successes P(x = k)
No more than k successes P (x <= k)
Greater than k successes P(x >= k)
Each scenario also calculates the mean, variance, standard deviation, skewness, and kurtosis.
Calculates moment number t using the moment generating function

Free Polygons Calculator - Using various input scenarios of a polygon such as side length, number of sides, apothem, and radius, this calculator determines Perimeter or a polygon and Area of the polygon. This also determines interior angles of a polygon and diagonals of a polygon as well as the total number of 1 vertex diagonals.

Free Powers Of Calculator - Determines the powers of a number from 1 to n.

Free Predecessor Calculator - Calculates the predecessor number to a given number

Free Prime Numbers Calculator - Shows up to 3000 prime numbers and a cumulative sum

Free Primitive Root Calculator - Given a prime number p and a potential root of b, this determines if b is a primitive root of p.

Free Probability Calculator - This lesson walks you through the basics of probability like the probability definition, events, outcomes, experiments, and probability postulates

Free Product of Consecutive Numbers Calculator - Finds the product of (n) consecutive integers, even or odd as well. Examples include:
product of 2 consecutive integers
product of 2 consecutive numbers
product of 2 consecutive even integers
product of 2 consecutive odd integers
product of 2 consecutive even numbers
product of 2 consecutive odd numbers
product of two consecutive integers
product of two consecutive odd integers
product of two consecutive even integers
product of two consecutive numbers
product of two consecutive odd numbers
product of two consecutive even numbers
product of 3 consecutive integers
product of 3 consecutive numbers
product of 3 consecutive even integers
product of 3 consecutive odd integers
product of 3 consecutive even numbers
product of 3 consecutive odd numbers
product of three consecutive integers
product of three consecutive odd integers
product of three consecutive even integers
product of three consecutive numbers
product of three consecutive odd numbers
product of three consecutive even numbers
product of 4 consecutive integers
product of 4 consecutive numbers
product of 4 consecutive even integers
product of 4 consecutive odd integers
product of 4 consecutive even numbers
product of 4 consecutive odd numbers
product of four consecutive integers
product of four consecutive odd integers
product of four consecutive even integers
product of four consecutive numbers
product of four consecutive odd numbers
product of four consecutive even numbers
product of 5 consecutive integers
product of 5 consecutive numbers
product of 5 consecutive even integers
product of 5 consecutive odd integers
product of 5 consecutive even numbers
product of 5 consecutive odd numbers
product of five consecutive integers
product of five consecutive odd integers
product of five consecutive even integers
product of five consecutive numbers
product of five consecutive odd numbers
product of five consecutive even numbers

Free Random Number Generator Calculator - This program generates (n) random numbers between a set of values you specify.
Example: Generate 5 random numbers between 0 and 100.

Free Ratio Word Problems Calculator - Solves a ratio word problem using a given ratio of 2 items in proportion to a whole number.

Free Rational Number Subtraction Calculator - Subtracting 2 numbers, this shows an equivalent operations is adding the additive inverse. p - q = p + (-q)

Free Rational Numbers Calculator - This lesson walks you through what rational numbers are, how to write rational numbers, rational number notation, and what's included in rational numbers

Free Rational Numbers Between Calculator - This calculator determines all rational numbers between two numbers

Free Rational,Irrational,Natural,Integer Property Calculator - This calculator takes a number, decimal, or square root, and checks to see if it has any of the following properties:
* Integer Numbers
* Natural Numbers
* Rational Numbers
* Irrational Numbers Handles questions like: Irrational or rational numbers Rational or irrational numbers rational and irrational numbers Rational number test Irrational number test Integer Test Natural Number Test

Free Real Numbers Calculator - This lesson walks you through what real numbers are, how to write real numbers, real numbers notation, and what's included in real numbers

Free Rectangular Number Calculator - This calculator determines the nth rectangular number

Free Reflexive Property Calculator - Demonstrates the reflexive property of congruence using a number. Numerical Properties

Free Regrouping Calculator - Subtracts two numbers using regrouping

Free Repeating Decimal Calculator - Evaluates and simplifies a repeating decimal

Free Roman Numeral Conversions Calculator - Converts a Positive integer less than 4000 to a Roman Numeral.
Converts a Roman Numeral with a positive value less than 4000 to a number.

Free Roster Notation Calculator - Given a set of numbers, this displays the roster notation

Free Roulette Cumulative Betting Calculator - This calculator displays the probability and return grid for a roulette scenario where you play x games, betting y per number playing z numbers per game.

Free Rounding Calculator - Rounds a number to the nearest number of your choice

Free Rounding to Decimal Places Calculator - Rounds a number to a select number of decimal places

Free Scientific Notation Calculator - * Converts a number into scientific notation and determines order of magnitude
* converts scientific notation to a number (standard notation). Also handles scientific notation operations.

Free Set Notation Calculator - Given two number sets A and B, this determines the following:
* Union of A and B, denoted A U B
* Intersection of A and B, denoted A ∩ B
* Elements in A not in B, denoted A - B
* Elements in B not in A, denoted B - A
* Symmetric Difference A Δ B
* The Concatenation A · B
* The Cartesian Product A x B
* Cardinality of A = |A|
* Cardinality of B = |B|
* Jaccard Index J(A,B)
* Jaccard Distance J_σ(A,B)
* Dice's Coefficient
* If A is a subset of B
* If B is a subset of A

Free Sieve of Eratosthenes Calculator - Using the Sieve of Eratosthenes algorithm, this will show how many prime numbers are less than a number (n).

Free Sign Test Calculator - This will determine whether to accept or reject a null hypothesis based on a number set, mean value, alternative hypothesis, and a significance level using the Sign Test.

Free Signed Integer Operations Calculator - This performs a string of signed integer operations, either all addition and subtraction, or all multiplication and division.

Free Significant Figures Calculator - Rounds a number to a select number of significant figures

Smallest Possible Number Calculator - Calculates the smallest possible number from a given set of numbers

Free Sports Pool Generator Calculator - This generator produces the following two sports (office) pools with shuffled scoring numbers (0 - 9):
1) Blank Sports Pool: This button generates a blank sports pool grid with shuffled numbers
2) Sports Pool with Names: This sports pool allows you to enter up to 100 names which will be randomly dropped into the blank grid boxes from Option 1 above.

This is easily copied and pasted into a program like Microsoft Word so that you can format it to your liking.

Free Square Number Calculator - This calculator determines the nth square number

Free Square Root Table Calculator - Generates a square root table for the first (n) numbers rounded to (r) digits

Free Square Roots and Exponents Calculator - Given a number (n), or a fraction (n/m), and/or an exponent (x), or product of up to 5 radicals, this determines the following:
* The square root of n denoted as √n
* The square root of the fraction n/m denoted as √n/m
* n raised to the x^th power denoted as n^x (Write without exponents)
* n raised to the x^th power raised to the yth power denoted as (n^x)^y (Write without exponents)
* Product of up to 5 square roots: √a√b√c√d√e
* Write a numeric expression such as 8x8x8x8x8 in exponential form

Free Static Determinacy and Stability Calculator - Given a number of joints (j) and a number of members (m), this determines if a truss is statically determinate, statically indeterminate, or unstable

Free Subtraction Property Of Inequality Calculator - Demonstrates the Subtraction Property Of Inequality Numerical Properties

Free Successor Calculator - Calculates the successor number to a given number

Free Sum of Consecutive Numbers Calculator - Finds the sum of (n) consecutive integers, even or odd as well. Examples include:
sum of 2 consecutive integers
sum of 2 consecutive numbers
sum of 2 consecutive even integers
sum of 2 consecutive odd integers
sum of 2 consecutive even numbers
sum of 2 consecutive odd numbers
sum of two consecutive integers
sum of two consecutive odd integers
sum of two consecutive even integers
sum of two consecutive numbers
sum of two consecutive odd numbers
sum of two consecutive even numbers
sum of 3 consecutive integers
sum of 3 consecutive numbers
sum of 3 consecutive even integers
sum of 3 consecutive odd integers
sum of 3 consecutive even numbers
sum of 3 consecutive odd numbers
sum of three consecutive integers
sum of three consecutive odd integers
sum of three consecutive even integers
sum of three consecutive numbers
sum of three consecutive odd numbers
sum of three consecutive even numbers
sum of 4 consecutive integers
sum of 4 consecutive numbers
sum of 4 consecutive even integers
sum of 4 consecutive odd integers
sum of 4 consecutive even numbers
sum of 4 consecutive odd numbers
sum of four consecutive integers
sum of four consecutive odd integers
sum of four consecutive even integers
sum of four consecutive numbers
sum of four consecutive odd numbers
sum of four consecutive even numbers
sum of 5 consecutive integers
sum of 5 consecutive numbers
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sum of 5 consecutive odd integers
sum of 5 consecutive even numbers
sum of 5 consecutive odd numbers
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sum of five consecutive odd integers
sum of five consecutive even integers
sum of five consecutive numbers
sum of five consecutive odd numbers
sum of five consecutive even numbers

Free Sum of Five Consecutive Integers Calculator - Finds five consecutive integers, if applicable, who have a sum equal to a number. Sum of 5 consecutive integers

Free Sum of Four Consecutive Integers Calculator - Finds four consecutive integers, if applicable, who have a sum equal to a number. Sum of 4 consecutive integers

Free Sum of the First (n) Numbers Calculator - Determines the sum of the first (n)
* Whole Numbers
* Natural Numbers
* Even Numbers
* Odd Numbers
* Square Numbers
* Cube Numbers
* Fourth Power Numbers

Free Sum of Three Consecutive Integers Calculator - Finds three consecutive integers, if applicable, who have a sum equal to a number. Sum of 3 consecutive integers

Free Symmetric Property Calculator - Demonstrates the Symmetric property using a number. Numerical Properties

Free T-Bill Calculator - Calculates any of the four items of the T-Bill (Treasury Bill or TBill) formula:
1) Price (P)
2) Face Value (F)
3) Number of Weeks (w)
4) Yield Rate (y)

Free Tally Marks Calculator - Shows the tally mark representation (tallies) for a positive integer.

Free Ten Frame Calculator - Builds a ten frame (dot card) for a number and shows numbers more and less.

Free Transitive Property of Equality Calculator - Demonstrates the Transitive property of equality using a number. Numerical Properties

Free Triangular Number Calculator - This calculator determines the nth triangular number. Generates composite numbers.

Free Trichotomy Property Calculator - Demonstrates the Trichotomy Property with 2 numbers. Numerical Properties

Free Trimmed Mean and Winsorized Mean Calculator - Given a number set and a trimmed mean percentage, this will calculate the trimmed mean (truncated mean) or winsorized mean.

Free True False Equations Calculator - Determines if a set of addition and subtraction of numbers on each side of an equation are equivalent. Also known as true or false equations

Free Truncate Calculator - Truncates a number to a specified number of decimal places. Truncates decimals.

Free Typing Speed Calculator - Solves for words per minute, number of words typed, errors, or number of minutes typing based on user entry.

Free Uniform Distribution Calculator - This calculates the following items for a uniform distribution
* Probability Density Function (PDF) ƒ(x)
* Cumulative Distribution Function (CDF) F(x)
* Mean, Variance, and Standard Deviation
Calculates moment number t using the moment generating function

Free Unknown Number Calculator - Determines the unknown number needed to make an equation true.

Free Walking Distance (Pedometer) Calculator - Given a number of steps and a distance per stride in feet, this calculator will determine how far you walk in other linear measurements.

Free What is a Variable Calculator - This lesson walks you through what a variable is and how to use it. Also demonstrates the let statement.

Free Whole Numbers Calculator - Shows a set amount of whole numbers and cumulative sum

Free Word Notation Calculator - Calculates the following:
* The word notation of a number of numeric expression

Free Zero Multiplication Property Calculator - Demonstrates the Zero Multiplication property using a number. Also called the Zero Product Property. Numerical Properties