Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 31 + 32 by rounding each number to the nearest 10: ______
- Estimate 88 + 48 by rounding each number to the nearest 10: ______
- Estimate 57 + 75 by rounding each number to the nearest 10: ______
- Estimate 85 − 80 by rounding each number to the nearest 10: ______
- Estimate 86 + 44 by rounding each number to the nearest 10: ______
- Estimate 22 − 67 by rounding each number to the nearest 10: ______
- Estimate 56 − 65 by rounding each number to the nearest 10: ______
- Estimate 65 + 53 by rounding each number to the nearest 10: ______
- Estimate 82 − 21 by rounding each number to the nearest 10: ______
- Estimate 86 + 47 by rounding each number to the nearest 10: ______
- Estimate 29 + 32 by rounding each number to the nearest 10: ______
- Estimate 79 − 54 by rounding each number to the nearest 10: ______
- Estimate 34 + 38 by rounding each number to the nearest 10: ______
- Estimate 26 − 26 by rounding each number to the nearest 10: ______
- Estimate 56 + 62 by rounding each number to the nearest 10: ______
- Estimate 33 + 65 by rounding each number to the nearest 10: ______
- Estimate 29 − 87 by rounding each number to the nearest 10: ______
- Estimate 72 − 49 by rounding each number to the nearest 10: ______
- Estimate 34 + 72 by rounding each number to the nearest 10: ______
- Estimate 26 − 68 by rounding each number to the nearest 10: ______