Question

What is 108 x 15 explain your answer

Answer 1

1,620

Explanation:

We can split each number in this problem into 100s 10s and 1s.

108 becomes 1 hundred, 0 tens, 8 ones:

(1 × 100) + (8 × 1)

= 100 + 8

15 becomes 1 ten, 5 ones:

(1 × 10) + (5 × 1)

= 10 + 5

Now, this multiplication can be represented as a complex array (see the attached image for a diagram):

(10 × 100) + (10 × 8) + (5 × 100) + (5 × 8)

= 1,000 + 80 + 500 + 40

= 1,620