Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 30 + 71 by rounding each number to the nearest 10: ______
- Estimate 75 − 82 by rounding each number to the nearest 10: ______
- Estimate 38 + 87 by rounding each number to the nearest 10: ______
- Estimate 42 + 44 by rounding each number to the nearest 10: ______
- Estimate 56 − 80 by rounding each number to the nearest 10: ______
- Estimate 71 − 81 by rounding each number to the nearest 10: ______
- Estimate 49 + 86 by rounding each number to the nearest 10: ______
- Estimate 53 − 56 by rounding each number to the nearest 10: ______
- Estimate 63 − 76 by rounding each number to the nearest 10: ______
- Estimate 37 − 43 by rounding each number to the nearest 10: ______
- Estimate 66 − 40 by rounding each number to the nearest 10: ______
- Estimate 78 − 88 by rounding each number to the nearest 10: ______
- Estimate 86 − 76 by rounding each number to the nearest 10: ______
- Estimate 43 − 46 by rounding each number to the nearest 10: ______
- Estimate 66 − 53 by rounding each number to the nearest 10: ______
- Estimate 54 + 25 by rounding each number to the nearest 10: ______
- Estimate 87 − 44 by rounding each number to the nearest 10: ______
- Estimate 83 − 72 by rounding each number to the nearest 10: ______
- Estimate 78 + 37 by rounding each number to the nearest 10: ______
- Estimate 48 + 66 by rounding each number to the nearest 10: ______