Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 52 by rounding each number to the nearest 10: ______
- Estimate 26 + 24 by rounding each number to the nearest 10: ______
- Estimate 66 + 76 by rounding each number to the nearest 10: ______
- Estimate 26 + 86 by rounding each number to the nearest 10: ______
- Estimate 89 − 78 by rounding each number to the nearest 10: ______
- Estimate 24 + 86 by rounding each number to the nearest 10: ______
- Estimate 26 − 54 by rounding each number to the nearest 10: ______
- Estimate 83 − 83 by rounding each number to the nearest 10: ______
- Estimate 87 + 38 by rounding each number to the nearest 10: ______
- Estimate 45 − 70 by rounding each number to the nearest 10: ______
- Estimate 50 − 38 by rounding each number to the nearest 10: ______
- Estimate 37 + 50 by rounding each number to the nearest 10: ______
- Estimate 23 + 38 by rounding each number to the nearest 10: ______
- Estimate 78 − 23 by rounding each number to the nearest 10: ______
- Estimate 76 − 89 by rounding each number to the nearest 10: ______
- Estimate 49 − 70 by rounding each number to the nearest 10: ______
- Estimate 30 − 85 by rounding each number to the nearest 10: ______
- Estimate 60 + 32 by rounding each number to the nearest 10: ______
- Estimate 49 − 80 by rounding each number to the nearest 10: ______
- Estimate 65 − 87 by rounding each number to the nearest 10: ______