Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 − 30 by rounding each number to the nearest 10: ______
- Estimate 76 − 25 by rounding each number to the nearest 10: ______
- Estimate 77 + 26 by rounding each number to the nearest 10: ______
- Estimate 52 − 39 by rounding each number to the nearest 10: ______
- Estimate 44 + 58 by rounding each number to the nearest 10: ______
- Estimate 65 − 63 by rounding each number to the nearest 10: ______
- Estimate 45 − 71 by rounding each number to the nearest 10: ______
- Estimate 70 − 48 by rounding each number to the nearest 10: ______
- Estimate 82 + 87 by rounding each number to the nearest 10: ______
- Estimate 89 + 46 by rounding each number to the nearest 10: ______
- Estimate 64 − 31 by rounding each number to the nearest 10: ______
- Estimate 68 + 60 by rounding each number to the nearest 10: ______
- Estimate 59 − 44 by rounding each number to the nearest 10: ______
- Estimate 33 − 40 by rounding each number to the nearest 10: ______
- Estimate 79 + 29 by rounding each number to the nearest 10: ______
- Estimate 85 − 53 by rounding each number to the nearest 10: ______
- Estimate 45 − 45 by rounding each number to the nearest 10: ______
- Estimate 25 − 79 by rounding each number to the nearest 10: ______
- Estimate 23 + 65 by rounding each number to the nearest 10: ______
- Estimate 66 − 44 by rounding each number to the nearest 10: ______