Remember each cell in the grid represents a two-digit answer to a multiplication (product) made of a tens digit, and a units digit. End of image gallery. Back to top. Practise Napier’s method.

To help you understand the algorithm, the video shows a simple two-digit by two-digit multiplication. You can see that the first and last digits are essentially the result of one multiplication.

Screenshot Via YouTube While the box method is essentially the same as the standard algorithm, it does a much nicer job of illustrating what's going on in a multiple-digit multiplication problem ...

Multiplication by triplex numbers. The answer is 4995. In this two-digit multiplication, we need to add the two digits twice so the zero included in the beginning helps us to get the correct answer.