Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 22 + 82 by rounding each number to the nearest 10: ______
- Estimate 72 − 31 by rounding each number to the nearest 10: ______
- Estimate 61 − 64 by rounding each number to the nearest 10: ______
- Estimate 69 + 88 by rounding each number to the nearest 10: ______
- Estimate 71 + 23 by rounding each number to the nearest 10: ______
- Estimate 53 + 64 by rounding each number to the nearest 10: ______
- Estimate 47 − 51 by rounding each number to the nearest 10: ______
- Estimate 81 − 28 by rounding each number to the nearest 10: ______
- Estimate 57 − 35 by rounding each number to the nearest 10: ______
- Estimate 42 − 51 by rounding each number to the nearest 10: ______
- Estimate 79 + 21 by rounding each number to the nearest 10: ______
- Estimate 27 − 54 by rounding each number to the nearest 10: ______
- Estimate 32 − 68 by rounding each number to the nearest 10: ______
- Estimate 49 − 40 by rounding each number to the nearest 10: ______
- Estimate 70 − 34 by rounding each number to the nearest 10: ______
- Estimate 64 + 81 by rounding each number to the nearest 10: ______
- Estimate 68 − 25 by rounding each number to the nearest 10: ______
- Estimate 86 − 36 by rounding each number to the nearest 10: ______
- Estimate 68 − 82 by rounding each number to the nearest 10: ______
- Estimate 38 + 39 by rounding each number to the nearest 10: ______