Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 33 + 82 by rounding each number to the nearest 10: ______
- Estimate 41 + 34 by rounding each number to the nearest 10: ______
- Estimate 42 + 63 by rounding each number to the nearest 10: ______
- Estimate 80 − 82 by rounding each number to the nearest 10: ______
- Estimate 80 − 36 by rounding each number to the nearest 10: ______
- Estimate 40 + 70 by rounding each number to the nearest 10: ______
- Estimate 41 − 57 by rounding each number to the nearest 10: ______
- Estimate 49 − 50 by rounding each number to the nearest 10: ______
- Estimate 22 − 87 by rounding each number to the nearest 10: ______
- Estimate 25 + 72 by rounding each number to the nearest 10: ______
- Estimate 81 − 37 by rounding each number to the nearest 10: ______
- Estimate 82 + 60 by rounding each number to the nearest 10: ______
- Estimate 81 − 66 by rounding each number to the nearest 10: ______
- Estimate 22 + 78 by rounding each number to the nearest 10: ______
- Estimate 45 + 33 by rounding each number to the nearest 10: ______
- Estimate 48 + 57 by rounding each number to the nearest 10: ______
- Estimate 65 + 54 by rounding each number to the nearest 10: ______
- Estimate 54 − 89 by rounding each number to the nearest 10: ______
- Estimate 57 − 72 by rounding each number to the nearest 10: ______
- Estimate 66 − 24 by rounding each number to the nearest 10: ______