Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 26 − 23 by rounding each number to the nearest 10: ______
- Estimate 83 − 67 by rounding each number to the nearest 10: ______
- Estimate 66 − 56 by rounding each number to the nearest 10: ______
- Estimate 66 − 84 by rounding each number to the nearest 10: ______
- Estimate 50 − 50 by rounding each number to the nearest 10: ______
- Estimate 76 − 83 by rounding each number to the nearest 10: ______
- Estimate 49 + 25 by rounding each number to the nearest 10: ______
- Estimate 48 + 51 by rounding each number to the nearest 10: ______
- Estimate 36 − 83 by rounding each number to the nearest 10: ______
- Estimate 85 + 87 by rounding each number to the nearest 10: ______
- Estimate 34 + 71 by rounding each number to the nearest 10: ______
- Estimate 25 + 48 by rounding each number to the nearest 10: ______
- Estimate 51 + 23 by rounding each number to the nearest 10: ______
- Estimate 45 − 22 by rounding each number to the nearest 10: ______
- Estimate 22 − 45 by rounding each number to the nearest 10: ______
- Estimate 37 + 26 by rounding each number to the nearest 10: ______
- Estimate 36 + 82 by rounding each number to the nearest 10: ______
- Estimate 89 + 86 by rounding each number to the nearest 10: ______
- Estimate 68 − 79 by rounding each number to the nearest 10: ______
- Estimate 55 + 31 by rounding each number to the nearest 10: ______