Question

The question is

Molly knows that 45 * 811 = 36,495

Use this understanding to help Molly solve 4.5 * 81.1

Choose 1 answer:

a 364,950

b 3,649.5

c 364.95

d 36.495

Answer 1

C

Explanation:

4.5 is 45 ÷ 10 and 81.1 is 811 ÷ 10 so that means that 4.5 × 81.1 = 45 ÷ 10 × 811 ÷ 10 = (45 × 81) ÷ 100. We know that 45 × 81 = 36,495 so we just have to divide that by 100 to get 364.95.