Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 36 − 30 by rounding each number to the nearest 10: ______
- Estimate 71 − 45 by rounding each number to the nearest 10: ______
- Estimate 81 + 28 by rounding each number to the nearest 10: ______
- Estimate 64 − 66 by rounding each number to the nearest 10: ______
- Estimate 83 − 68 by rounding each number to the nearest 10: ______
- Estimate 81 − 75 by rounding each number to the nearest 10: ______
- Estimate 48 + 21 by rounding each number to the nearest 10: ______
- Estimate 58 − 57 by rounding each number to the nearest 10: ______
- Estimate 65 − 76 by rounding each number to the nearest 10: ______
- Estimate 54 − 68 by rounding each number to the nearest 10: ______
- Estimate 75 + 46 by rounding each number to the nearest 10: ______
- Estimate 33 + 76 by rounding each number to the nearest 10: ______
- Estimate 42 − 82 by rounding each number to the nearest 10: ______
- Estimate 65 + 58 by rounding each number to the nearest 10: ______
- Estimate 22 + 60 by rounding each number to the nearest 10: ______
- Estimate 81 − 41 by rounding each number to the nearest 10: ______
- Estimate 23 − 86 by rounding each number to the nearest 10: ______
- Estimate 65 − 25 by rounding each number to the nearest 10: ______
- Estimate 42 + 64 by rounding each number to the nearest 10: ______
- Estimate 51 + 33 by rounding each number to the nearest 10: ______