Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 + 25 by rounding each number to the nearest 10: ______
- Estimate 77 − 85 by rounding each number to the nearest 10: ______
- Estimate 38 + 50 by rounding each number to the nearest 10: ______
- Estimate 81 − 38 by rounding each number to the nearest 10: ______
- Estimate 33 + 52 by rounding each number to the nearest 10: ______
- Estimate 49 + 85 by rounding each number to the nearest 10: ______
- Estimate 21 + 23 by rounding each number to the nearest 10: ______
- Estimate 71 − 81 by rounding each number to the nearest 10: ______
- Estimate 21 − 63 by rounding each number to the nearest 10: ______
- Estimate 71 − 70 by rounding each number to the nearest 10: ______
- Estimate 26 − 62 by rounding each number to the nearest 10: ______
- Estimate 64 − 61 by rounding each number to the nearest 10: ______
- Estimate 26 − 36 by rounding each number to the nearest 10: ______
- Estimate 84 − 56 by rounding each number to the nearest 10: ______
- Estimate 72 + 82 by rounding each number to the nearest 10: ______
- Estimate 30 + 30 by rounding each number to the nearest 10: ______
- Estimate 59 + 86 by rounding each number to the nearest 10: ______
- Estimate 61 − 31 by rounding each number to the nearest 10: ______
- Estimate 34 + 26 by rounding each number to the nearest 10: ______
- Estimate 43 + 82 by rounding each number to the nearest 10: ______