Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 + 28 by rounding each number to the nearest 10: ______
- Estimate 85 − 72 by rounding each number to the nearest 10: ______
- Estimate 68 − 38 by rounding each number to the nearest 10: ______
- Estimate 63 + 89 by rounding each number to the nearest 10: ______
- Estimate 29 − 25 by rounding each number to the nearest 10: ______
- Estimate 37 − 59 by rounding each number to the nearest 10: ______
- Estimate 31 − 49 by rounding each number to the nearest 10: ______
- Estimate 83 + 69 by rounding each number to the nearest 10: ______
- Estimate 84 − 53 by rounding each number to the nearest 10: ______
- Estimate 43 − 88 by rounding each number to the nearest 10: ______
- Estimate 52 + 66 by rounding each number to the nearest 10: ______
- Estimate 37 − 24 by rounding each number to the nearest 10: ______
- Estimate 62 + 32 by rounding each number to the nearest 10: ______
- Estimate 61 + 78 by rounding each number to the nearest 10: ______
- Estimate 72 + 38 by rounding each number to the nearest 10: ______
- Estimate 61 − 89 by rounding each number to the nearest 10: ______
- Estimate 80 + 63 by rounding each number to the nearest 10: ______
- Estimate 86 + 55 by rounding each number to the nearest 10: ______
- Estimate 58 − 22 by rounding each number to the nearest 10: ______
- Estimate 35 − 83 by rounding each number to the nearest 10: ______