Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 62 + 62 by rounding each number to the nearest 10: ______
- Estimate 24 − 32 by rounding each number to the nearest 10: ______
- Estimate 53 − 21 by rounding each number to the nearest 10: ______
- Estimate 81 − 65 by rounding each number to the nearest 10: ______
- Estimate 21 + 40 by rounding each number to the nearest 10: ______
- Estimate 71 + 82 by rounding each number to the nearest 10: ______
- Estimate 33 − 61 by rounding each number to the nearest 10: ______
- Estimate 76 + 73 by rounding each number to the nearest 10: ______
- Estimate 53 − 37 by rounding each number to the nearest 10: ______
- Estimate 70 + 74 by rounding each number to the nearest 10: ______
- Estimate 38 + 87 by rounding each number to the nearest 10: ______
- Estimate 54 + 68 by rounding each number to the nearest 10: ______
- Estimate 66 − 31 by rounding each number to the nearest 10: ______
- Estimate 62 + 54 by rounding each number to the nearest 10: ______
- Estimate 54 + 58 by rounding each number to the nearest 10: ______
- Estimate 63 − 27 by rounding each number to the nearest 10: ______
- Estimate 75 − 58 by rounding each number to the nearest 10: ______
- Estimate 69 − 40 by rounding each number to the nearest 10: ______
- Estimate 64 + 63 by rounding each number to the nearest 10: ______
- Estimate 68 − 80 by rounding each number to the nearest 10: ______