Question

Don starts to use the standard algorithm to solve 418 × 5 . His work is shown below. × 418 5 0 What number should Don replace y with?

Answer 1

40 is the answer you’ll thank me later

Answer 2

40

Explanation:

In the standard algorithm for multiplication, when multiplying a multi-digit number (in this case, 418) by a single-digit number (5), you would typically start with the rightmost digit of the multi-digit number (8 in this case) and multiply it by the single-digit number (5). The result is placed in the same column.

So, you should replace y with the product of 8 and 5, which is 40:

× 418

5 0