Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 51 − 83 by rounding each number to the nearest 10: ______
- Estimate 79 + 37 by rounding each number to the nearest 10: ______
- Estimate 71 + 44 by rounding each number to the nearest 10: ______
- Estimate 32 − 67 by rounding each number to the nearest 10: ______
- Estimate 64 − 32 by rounding each number to the nearest 10: ______
- Estimate 50 + 24 by rounding each number to the nearest 10: ______
- Estimate 29 − 52 by rounding each number to the nearest 10: ______
- Estimate 25 − 34 by rounding each number to the nearest 10: ______
- Estimate 59 + 88 by rounding each number to the nearest 10: ______
- Estimate 83 − 58 by rounding each number to the nearest 10: ______
- Estimate 78 + 72 by rounding each number to the nearest 10: ______
- Estimate 69 + 25 by rounding each number to the nearest 10: ______
- Estimate 40 − 69 by rounding each number to the nearest 10: ______
- Estimate 75 + 41 by rounding each number to the nearest 10: ______
- Estimate 30 + 40 by rounding each number to the nearest 10: ______
- Estimate 71 + 41 by rounding each number to the nearest 10: ______
- Estimate 85 − 29 by rounding each number to the nearest 10: ______
- Estimate 53 − 24 by rounding each number to the nearest 10: ______
- Estimate 81 + 82 by rounding each number to the nearest 10: ______
- Estimate 62 + 81 by rounding each number to the nearest 10: ______