This method uses a grid to multiply numbers.
Multiplying a two-digit number with another two-digit number would require a by grid, for example .
Multiplying would require a by grid.
Follow the steps below to see how Napier’s method is used to calculate .
After completing the grid, add the columns along the diagonals, starting at the bottom-right. We sometimes need to carry over from one diagonal to the next. To get the answer, read the totals down the left and to the right.
Use Napier’s method to calculate .
Draw a box and follow the guidelines in the previous example.
Did you notice that there’s no need to carry over in this example?