Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 37 + 68 by rounding each number to the nearest 10: ______
- Estimate 82 − 21 by rounding each number to the nearest 10: ______
- Estimate 66 + 70 by rounding each number to the nearest 10: ______
- Estimate 54 − 64 by rounding each number to the nearest 10: ______
- Estimate 64 − 74 by rounding each number to the nearest 10: ______
- Estimate 64 + 88 by rounding each number to the nearest 10: ______
- Estimate 56 + 26 by rounding each number to the nearest 10: ______
- Estimate 35 + 38 by rounding each number to the nearest 10: ______
- Estimate 34 − 74 by rounding each number to the nearest 10: ______
- Estimate 82 + 65 by rounding each number to the nearest 10: ______
- Estimate 58 − 60 by rounding each number to the nearest 10: ______
- Estimate 21 + 53 by rounding each number to the nearest 10: ______
- Estimate 57 − 24 by rounding each number to the nearest 10: ______
- Estimate 73 + 70 by rounding each number to the nearest 10: ______
- Estimate 42 + 52 by rounding each number to the nearest 10: ______
- Estimate 89 + 67 by rounding each number to the nearest 10: ______
- Estimate 80 + 89 by rounding each number to the nearest 10: ______
- Estimate 82 − 47 by rounding each number to the nearest 10: ______
- Estimate 74 − 58 by rounding each number to the nearest 10: ______
- Estimate 81 + 38 by rounding each number to the nearest 10: ______