Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 26 − 81 by rounding each number to the nearest 10: ______
- Estimate 56 − 57 by rounding each number to the nearest 10: ______
- Estimate 54 + 51 by rounding each number to the nearest 10: ______
- Estimate 82 + 32 by rounding each number to the nearest 10: ______
- Estimate 30 + 56 by rounding each number to the nearest 10: ______
- Estimate 86 + 62 by rounding each number to the nearest 10: ______
- Estimate 66 − 62 by rounding each number to the nearest 10: ______
- Estimate 43 + 30 by rounding each number to the nearest 10: ______
- Estimate 71 − 46 by rounding each number to the nearest 10: ______
- Estimate 25 + 89 by rounding each number to the nearest 10: ______
- Estimate 45 + 31 by rounding each number to the nearest 10: ______
- Estimate 67 − 83 by rounding each number to the nearest 10: ______
- Estimate 75 − 63 by rounding each number to the nearest 10: ______
- Estimate 39 − 39 by rounding each number to the nearest 10: ______
- Estimate 75 − 41 by rounding each number to the nearest 10: ______
- Estimate 34 + 56 by rounding each number to the nearest 10: ______
- Estimate 62 + 24 by rounding each number to the nearest 10: ______
- Estimate 29 − 61 by rounding each number to the nearest 10: ______
- Estimate 85 + 56 by rounding each number to the nearest 10: ______
- Estimate 39 + 83 by rounding each number to the nearest 10: ______