Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 40 + 48 by rounding each number to the nearest 10: ______
- Estimate 57 − 29 by rounding each number to the nearest 10: ______
- Estimate 32 − 67 by rounding each number to the nearest 10: ______
- Estimate 53 + 24 by rounding each number to the nearest 10: ______
- Estimate 64 − 45 by rounding each number to the nearest 10: ______
- Estimate 59 − 89 by rounding each number to the nearest 10: ______
- Estimate 60 + 89 by rounding each number to the nearest 10: ______
- Estimate 69 + 84 by rounding each number to the nearest 10: ______
- Estimate 83 − 81 by rounding each number to the nearest 10: ______
- Estimate 84 + 78 by rounding each number to the nearest 10: ______
- Estimate 57 − 57 by rounding each number to the nearest 10: ______
- Estimate 55 − 89 by rounding each number to the nearest 10: ______
- Estimate 30 + 88 by rounding each number to the nearest 10: ______
- Estimate 62 − 23 by rounding each number to the nearest 10: ______
- Estimate 69 + 78 by rounding each number to the nearest 10: ______
- Estimate 71 − 26 by rounding each number to the nearest 10: ______
- Estimate 33 − 53 by rounding each number to the nearest 10: ______
- Estimate 48 + 76 by rounding each number to the nearest 10: ______
- Estimate 39 − 73 by rounding each number to the nearest 10: ______
- Estimate 68 + 84 by rounding each number to the nearest 10: ______