Question

Estimate the decimal factors, then multiply to estimate the product. 1. 5.3 rounded to the nearest whole number is ____ . 2. 7.9 rounded to the nearest whole number is ____ . 3. (5.3)(7.9) ≈ ____ .

Answer 1

1. 5

2. 8

3. 40

Explanation:

Answer 2

1. 5

2. 8

3. 40

Explanation:

So rounding the factors is an easy way to estimate the product of 5.3 and 7.9.

The real answer is 41.87 and 40 is a reasonable approximation.

40 ≈ 41.87