Question

Use the estimation to check weather 128is a reasonable answer in the example above p=200-72

Answer 1

130 is close to 128, so 128 is a reasonable answer.

Explanation:

Consider the provided information.

We need to Use the estimation to check weather 128 is a reasonable answer in the example above:

p=200-72

Round to the nearest ten: p = 200 - 70

Subtract the rounded numbers: 200-70=130

130 is close to 128, so 128 is a reasonable answer.