Answer:
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.