Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 74 − 33 by rounding each number to the nearest 10: ______
- Estimate 42 + 88 by rounding each number to the nearest 10: ______
- Estimate 87 − 71 by rounding each number to the nearest 10: ______
- Estimate 49 − 56 by rounding each number to the nearest 10: ______
- Estimate 71 + 47 by rounding each number to the nearest 10: ______
- Estimate 83 − 69 by rounding each number to the nearest 10: ______
- Estimate 76 − 39 by rounding each number to the nearest 10: ______
- Estimate 82 − 55 by rounding each number to the nearest 10: ______
- Estimate 81 + 26 by rounding each number to the nearest 10: ______
- Estimate 22 + 63 by rounding each number to the nearest 10: ______
- Estimate 82 − 31 by rounding each number to the nearest 10: ______
- Estimate 88 − 84 by rounding each number to the nearest 10: ______
- Estimate 68 + 51 by rounding each number to the nearest 10: ______
- Estimate 26 + 58 by rounding each number to the nearest 10: ______
- Estimate 72 + 24 by rounding each number to the nearest 10: ______
- Estimate 63 + 64 by rounding each number to the nearest 10: ______
- Estimate 48 − 78 by rounding each number to the nearest 10: ______
- Estimate 28 + 23 by rounding each number to the nearest 10: ______
- Estimate 66 − 69 by rounding each number to the nearest 10: ______
- Estimate 46 − 85 by rounding each number to the nearest 10: ______