Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 21 − 35 by rounding each number to the nearest 10: ______
- Estimate 48 − 49 by rounding each number to the nearest 10: ______
- Estimate 74 − 51 by rounding each number to the nearest 10: ______
- Estimate 45 + 71 by rounding each number to the nearest 10: ______
- Estimate 59 + 35 by rounding each number to the nearest 10: ______
- Estimate 83 − 45 by rounding each number to the nearest 10: ______
- Estimate 31 − 35 by rounding each number to the nearest 10: ______
- Estimate 63 + 49 by rounding each number to the nearest 10: ______
- Estimate 86 − 31 by rounding each number to the nearest 10: ______
- Estimate 64 + 66 by rounding each number to the nearest 10: ______
- Estimate 68 − 81 by rounding each number to the nearest 10: ______
- Estimate 36 − 83 by rounding each number to the nearest 10: ______
- Estimate 69 − 29 by rounding each number to the nearest 10: ______
- Estimate 76 − 28 by rounding each number to the nearest 10: ______
- Estimate 74 − 44 by rounding each number to the nearest 10: ______
- Estimate 36 + 78 by rounding each number to the nearest 10: ______
- Estimate 75 − 73 by rounding each number to the nearest 10: ______
- Estimate 60 − 76 by rounding each number to the nearest 10: ______
- Estimate 61 − 78 by rounding each number to the nearest 10: ______
- Estimate 81 − 82 by rounding each number to the nearest 10: ______