Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 54 + 81 by rounding each number to the nearest 10: ______
- Estimate 27 − 41 by rounding each number to the nearest 10: ______
- Estimate 53 + 44 by rounding each number to the nearest 10: ______
- Estimate 50 + 54 by rounding each number to the nearest 10: ______
- Estimate 31 − 54 by rounding each number to the nearest 10: ______
- Estimate 80 − 30 by rounding each number to the nearest 10: ______
- Estimate 51 + 89 by rounding each number to the nearest 10: ______
- Estimate 29 − 68 by rounding each number to the nearest 10: ______
- Estimate 60 + 82 by rounding each number to the nearest 10: ______
- Estimate 83 + 67 by rounding each number to the nearest 10: ______
- Estimate 68 + 51 by rounding each number to the nearest 10: ______
- Estimate 40 − 60 by rounding each number to the nearest 10: ______
- Estimate 56 + 59 by rounding each number to the nearest 10: ______
- Estimate 35 + 30 by rounding each number to the nearest 10: ______
- Estimate 24 + 30 by rounding each number to the nearest 10: ______
- Estimate 54 + 37 by rounding each number to the nearest 10: ______
- Estimate 41 − 28 by rounding each number to the nearest 10: ______
- Estimate 29 − 86 by rounding each number to the nearest 10: ______
- Estimate 22 − 80 by rounding each number to the nearest 10: ______
- Estimate 65 + 38 by rounding each number to the nearest 10: ______