Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 + 57 by rounding each number to the nearest 10: ______
- Estimate 22 − 41 by rounding each number to the nearest 10: ______
- Estimate 23 + 34 by rounding each number to the nearest 10: ______
- Estimate 58 − 56 by rounding each number to the nearest 10: ______
- Estimate 48 − 39 by rounding each number to the nearest 10: ______
- Estimate 50 − 35 by rounding each number to the nearest 10: ______
- Estimate 79 + 41 by rounding each number to the nearest 10: ______
- Estimate 71 + 58 by rounding each number to the nearest 10: ______
- Estimate 41 − 50 by rounding each number to the nearest 10: ______
- Estimate 82 − 36 by rounding each number to the nearest 10: ______
- Estimate 49 − 57 by rounding each number to the nearest 10: ______
- Estimate 57 + 85 by rounding each number to the nearest 10: ______
- Estimate 49 − 63 by rounding each number to the nearest 10: ______
- Estimate 55 + 80 by rounding each number to the nearest 10: ______
- Estimate 44 + 89 by rounding each number to the nearest 10: ______
- Estimate 70 + 81 by rounding each number to the nearest 10: ______
- Estimate 54 − 35 by rounding each number to the nearest 10: ______
- Estimate 35 + 21 by rounding each number to the nearest 10: ______
- Estimate 31 + 21 by rounding each number to the nearest 10: ______
- Estimate 62 + 61 by rounding each number to the nearest 10: ______