Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 − 80 by rounding each number to the nearest 10: ______
- Estimate 82 + 54 by rounding each number to the nearest 10: ______
- Estimate 22 + 61 by rounding each number to the nearest 10: ______
- Estimate 49 − 59 by rounding each number to the nearest 10: ______
- Estimate 58 − 44 by rounding each number to the nearest 10: ______
- Estimate 62 + 37 by rounding each number to the nearest 10: ______
- Estimate 24 + 53 by rounding each number to the nearest 10: ______
- Estimate 83 − 72 by rounding each number to the nearest 10: ______
- Estimate 88 + 74 by rounding each number to the nearest 10: ______
- Estimate 27 + 49 by rounding each number to the nearest 10: ______
- Estimate 82 + 29 by rounding each number to the nearest 10: ______
- Estimate 41 + 85 by rounding each number to the nearest 10: ______
- Estimate 46 + 61 by rounding each number to the nearest 10: ______
- Estimate 35 + 89 by rounding each number to the nearest 10: ______
- Estimate 34 − 71 by rounding each number to the nearest 10: ______
- Estimate 64 + 66 by rounding each number to the nearest 10: ______
- Estimate 85 − 38 by rounding each number to the nearest 10: ______
- Estimate 89 + 89 by rounding each number to the nearest 10: ______
- Estimate 30 − 31 by rounding each number to the nearest 10: ______
- Estimate 79 + 85 by rounding each number to the nearest 10: ______