Question

MEDALS GIVEN PLZ HELP!!!!!

Describe two ways to estimate the product 5 and one-eighth times 7 and nine-tenths. Find the estimate for this product using each method.

Answer 1

Five and one eighth is 5 1/8
Seven and nine tenths is 7 9/10

5 1/8 is close to the natural number 5 because 1/8 is close to 0. 7 9/10 is close to the natural number 8 because 9/10 is close to 1. Thus rounding off 5 1/8 to 5 and 7 9/10 to 8, we obtain

5 x 8 = 40

The estimated product is 40.

Answer 2

40