Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 60 + 85 by rounding each number to the nearest 10: ______
- Estimate 39 − 81 by rounding each number to the nearest 10: ______
- Estimate 33 − 40 by rounding each number to the nearest 10: ______
- Estimate 66 − 39 by rounding each number to the nearest 10: ______
- Estimate 73 + 61 by rounding each number to the nearest 10: ______
- Estimate 43 + 52 by rounding each number to the nearest 10: ______
- Estimate 57 − 56 by rounding each number to the nearest 10: ______
- Estimate 30 − 82 by rounding each number to the nearest 10: ______
- Estimate 49 − 73 by rounding each number to the nearest 10: ______
- Estimate 63 + 33 by rounding each number to the nearest 10: ______
- Estimate 32 + 58 by rounding each number to the nearest 10: ______
- Estimate 21 + 63 by rounding each number to the nearest 10: ______
- Estimate 26 − 58 by rounding each number to the nearest 10: ______
- Estimate 37 − 34 by rounding each number to the nearest 10: ______
- Estimate 89 + 78 by rounding each number to the nearest 10: ______
- Estimate 66 − 74 by rounding each number to the nearest 10: ______
- Estimate 74 − 36 by rounding each number to the nearest 10: ______
- Estimate 31 − 51 by rounding each number to the nearest 10: ______
- Estimate 32 − 75 by rounding each number to the nearest 10: ______
- Estimate 87 − 29 by rounding each number to the nearest 10: ______