Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 56 − 66 by rounding each number to the nearest 10: ______
- Estimate 85 + 27 by rounding each number to the nearest 10: ______
- Estimate 71 − 34 by rounding each number to the nearest 10: ______
- Estimate 83 − 41 by rounding each number to the nearest 10: ______
- Estimate 67 − 68 by rounding each number to the nearest 10: ______
- Estimate 70 − 30 by rounding each number to the nearest 10: ______
- Estimate 82 − 49 by rounding each number to the nearest 10: ______
- Estimate 27 − 61 by rounding each number to the nearest 10: ______
- Estimate 61 + 41 by rounding each number to the nearest 10: ______
- Estimate 26 + 38 by rounding each number to the nearest 10: ______
- Estimate 72 − 23 by rounding each number to the nearest 10: ______
- Estimate 21 − 79 by rounding each number to the nearest 10: ______
- Estimate 69 + 44 by rounding each number to the nearest 10: ______
- Estimate 74 − 23 by rounding each number to the nearest 10: ______
- Estimate 76 + 26 by rounding each number to the nearest 10: ______
- Estimate 53 + 76 by rounding each number to the nearest 10: ______
- Estimate 44 − 49 by rounding each number to the nearest 10: ______
- Estimate 53 − 72 by rounding each number to the nearest 10: ______
- Estimate 69 + 33 by rounding each number to the nearest 10: ______
- Estimate 63 − 61 by rounding each number to the nearest 10: ______