Enter Number 1

Enter Number 2

  

Using Napier's Bones, calculate:
9 x 7

10/9
21 / 8
32 / 7
43 / 6
54 / 5
65 / 4
76 / 3
87 / 2
98 / 1

Add from right to left

76 / 3

Add diagonal sections from right to left
3
6
Our summation for this row is 63


63