Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 + 71 by rounding each number to the nearest 10: ______
- Estimate 86 − 69 by rounding each number to the nearest 10: ______
- Estimate 39 + 55 by rounding each number to the nearest 10: ______
- Estimate 84 + 80 by rounding each number to the nearest 10: ______
- Estimate 60 + 64 by rounding each number to the nearest 10: ______
- Estimate 81 − 42 by rounding each number to the nearest 10: ______
- Estimate 40 + 72 by rounding each number to the nearest 10: ______
- Estimate 61 − 88 by rounding each number to the nearest 10: ______
- Estimate 21 + 27 by rounding each number to the nearest 10: ______
- Estimate 64 + 80 by rounding each number to the nearest 10: ______
- Estimate 45 − 21 by rounding each number to the nearest 10: ______
- Estimate 37 − 87 by rounding each number to the nearest 10: ______
- Estimate 70 + 45 by rounding each number to the nearest 10: ______
- Estimate 62 − 78 by rounding each number to the nearest 10: ______
- Estimate 37 − 65 by rounding each number to the nearest 10: ______
- Estimate 58 − 26 by rounding each number to the nearest 10: ______
- Estimate 60 + 89 by rounding each number to the nearest 10: ______
- Estimate 36 + 68 by rounding each number to the nearest 10: ______
- Estimate 82 − 72 by rounding each number to the nearest 10: ______
- Estimate 83 − 51 by rounding each number to the nearest 10: ______