Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 + 41 by rounding each number to the nearest 10: ______
- Estimate 37 + 59 by rounding each number to the nearest 10: ______
- Estimate 68 + 80 by rounding each number to the nearest 10: ______
- Estimate 89 − 59 by rounding each number to the nearest 10: ______
- Estimate 80 + 23 by rounding each number to the nearest 10: ______
- Estimate 41 + 25 by rounding each number to the nearest 10: ______
- Estimate 82 − 74 by rounding each number to the nearest 10: ______
- Estimate 21 − 88 by rounding each number to the nearest 10: ______
- Estimate 26 + 74 by rounding each number to the nearest 10: ______
- Estimate 67 − 21 by rounding each number to the nearest 10: ______
- Estimate 88 − 86 by rounding each number to the nearest 10: ______
- Estimate 32 + 47 by rounding each number to the nearest 10: ______
- Estimate 56 + 41 by rounding each number to the nearest 10: ______
- Estimate 81 − 58 by rounding each number to the nearest 10: ______
- Estimate 60 − 72 by rounding each number to the nearest 10: ______
- Estimate 29 + 85 by rounding each number to the nearest 10: ______
- Estimate 67 + 67 by rounding each number to the nearest 10: ______
- Estimate 70 + 48 by rounding each number to the nearest 10: ______
- Estimate 32 + 84 by rounding each number to the nearest 10: ______
- Estimate 23 + 21 by rounding each number to the nearest 10: ______