Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 68 − 79 by rounding each number to the nearest 10: ______
- Estimate 79 − 69 by rounding each number to the nearest 10: ______
- Estimate 47 − 72 by rounding each number to the nearest 10: ______
- Estimate 86 + 81 by rounding each number to the nearest 10: ______
- Estimate 78 − 88 by rounding each number to the nearest 10: ______
- Estimate 89 − 26 by rounding each number to the nearest 10: ______
- Estimate 67 + 41 by rounding each number to the nearest 10: ______
- Estimate 78 − 41 by rounding each number to the nearest 10: ______
- Estimate 66 + 28 by rounding each number to the nearest 10: ______
- Estimate 36 − 84 by rounding each number to the nearest 10: ______
- Estimate 86 + 32 by rounding each number to the nearest 10: ______
- Estimate 89 − 28 by rounding each number to the nearest 10: ______
- Estimate 60 − 70 by rounding each number to the nearest 10: ______
- Estimate 26 − 68 by rounding each number to the nearest 10: ______
- Estimate 48 + 71 by rounding each number to the nearest 10: ______
- Estimate 66 − 87 by rounding each number to the nearest 10: ______
- Estimate 87 − 62 by rounding each number to the nearest 10: ______
- Estimate 46 − 32 by rounding each number to the nearest 10: ______
- Estimate 64 + 28 by rounding each number to the nearest 10: ______
- Estimate 26 + 89 by rounding each number to the nearest 10: ______