Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 71 + 81 by rounding each number to the nearest 10: ______
- Estimate 49 + 50 by rounding each number to the nearest 10: ______
- Estimate 30 + 53 by rounding each number to the nearest 10: ______
- Estimate 87 − 42 by rounding each number to the nearest 10: ______
- Estimate 31 − 59 by rounding each number to the nearest 10: ______
- Estimate 37 − 24 by rounding each number to the nearest 10: ______
- Estimate 41 + 89 by rounding each number to the nearest 10: ______
- Estimate 42 − 69 by rounding each number to the nearest 10: ______
- Estimate 70 − 87 by rounding each number to the nearest 10: ______
- Estimate 49 − 63 by rounding each number to the nearest 10: ______
- Estimate 67 − 66 by rounding each number to the nearest 10: ______
- Estimate 54 − 21 by rounding each number to the nearest 10: ______
- Estimate 27 + 62 by rounding each number to the nearest 10: ______
- Estimate 87 + 21 by rounding each number to the nearest 10: ______
- Estimate 35 − 41 by rounding each number to the nearest 10: ______
- Estimate 27 − 88 by rounding each number to the nearest 10: ______
- Estimate 51 − 32 by rounding each number to the nearest 10: ______
- Estimate 24 − 31 by rounding each number to the nearest 10: ______
- Estimate 55 − 76 by rounding each number to the nearest 10: ______
- Estimate 37 − 22 by rounding each number to the nearest 10: ______