Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 80 − 63 by rounding each number to the nearest 10: ______
- Estimate 84 + 68 by rounding each number to the nearest 10: ______
- Estimate 65 − 33 by rounding each number to the nearest 10: ______
- Estimate 32 − 81 by rounding each number to the nearest 10: ______
- Estimate 52 − 39 by rounding each number to the nearest 10: ______
- Estimate 74 − 81 by rounding each number to the nearest 10: ______
- Estimate 72 + 76 by rounding each number to the nearest 10: ______
- Estimate 64 − 54 by rounding each number to the nearest 10: ______
- Estimate 28 + 27 by rounding each number to the nearest 10: ______
- Estimate 52 − 68 by rounding each number to the nearest 10: ______
- Estimate 22 + 26 by rounding each number to the nearest 10: ______
- Estimate 55 − 88 by rounding each number to the nearest 10: ______
- Estimate 71 − 30 by rounding each number to the nearest 10: ______
- Estimate 30 − 62 by rounding each number to the nearest 10: ______
- Estimate 32 + 37 by rounding each number to the nearest 10: ______
- Estimate 60 − 77 by rounding each number to the nearest 10: ______
- Estimate 61 − 45 by rounding each number to the nearest 10: ______
- Estimate 79 + 32 by rounding each number to the nearest 10: ______
- Estimate 29 + 82 by rounding each number to the nearest 10: ______
- Estimate 86 − 45 by rounding each number to the nearest 10: ______