Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 + 43 by rounding each number to the nearest 10: ______
- Estimate 61 + 87 by rounding each number to the nearest 10: ______
- Estimate 33 − 69 by rounding each number to the nearest 10: ______
- Estimate 29 − 80 by rounding each number to the nearest 10: ______
- Estimate 88 − 31 by rounding each number to the nearest 10: ______
- Estimate 65 − 52 by rounding each number to the nearest 10: ______
- Estimate 58 − 43 by rounding each number to the nearest 10: ______
- Estimate 80 − 29 by rounding each number to the nearest 10: ______
- Estimate 57 − 49 by rounding each number to the nearest 10: ______
- Estimate 50 − 82 by rounding each number to the nearest 10: ______
- Estimate 86 + 39 by rounding each number to the nearest 10: ______
- Estimate 63 − 83 by rounding each number to the nearest 10: ______
- Estimate 56 + 64 by rounding each number to the nearest 10: ______
- Estimate 29 + 51 by rounding each number to the nearest 10: ______
- Estimate 25 − 47 by rounding each number to the nearest 10: ______
- Estimate 73 − 40 by rounding each number to the nearest 10: ______
- Estimate 32 + 65 by rounding each number to the nearest 10: ______
- Estimate 89 + 25 by rounding each number to the nearest 10: ______
- Estimate 58 − 61 by rounding each number to the nearest 10: ______
- Estimate 40 − 26 by rounding each number to the nearest 10: ______