Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 72 − 48 by rounding each number to the nearest 10: ______
- Estimate 67 − 31 by rounding each number to the nearest 10: ______
- Estimate 52 − 57 by rounding each number to the nearest 10: ______
- Estimate 84 + 63 by rounding each number to the nearest 10: ______
- Estimate 72 + 75 by rounding each number to the nearest 10: ______
- Estimate 53 − 60 by rounding each number to the nearest 10: ______
- Estimate 22 − 49 by rounding each number to the nearest 10: ______
- Estimate 21 + 41 by rounding each number to the nearest 10: ______
- Estimate 32 + 88 by rounding each number to the nearest 10: ______
- Estimate 43 + 83 by rounding each number to the nearest 10: ______
- Estimate 78 − 22 by rounding each number to the nearest 10: ______
- Estimate 85 − 28 by rounding each number to the nearest 10: ______
- Estimate 65 + 30 by rounding each number to the nearest 10: ______
- Estimate 29 − 79 by rounding each number to the nearest 10: ______
- Estimate 87 − 49 by rounding each number to the nearest 10: ______
- Estimate 80 + 54 by rounding each number to the nearest 10: ______
- Estimate 29 + 26 by rounding each number to the nearest 10: ______
- Estimate 88 − 67 by rounding each number to the nearest 10: ______
- Estimate 33 − 37 by rounding each number to the nearest 10: ______
- Estimate 48 + 35 by rounding each number to the nearest 10: ______