Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 55 − 86 by rounding each number to the nearest 10: ______
- Estimate 23 − 43 by rounding each number to the nearest 10: ______
- Estimate 32 + 49 by rounding each number to the nearest 10: ______
- Estimate 33 + 62 by rounding each number to the nearest 10: ______
- Estimate 86 − 31 by rounding each number to the nearest 10: ______
- Estimate 82 + 22 by rounding each number to the nearest 10: ______
- Estimate 55 − 89 by rounding each number to the nearest 10: ______
- Estimate 74 − 66 by rounding each number to the nearest 10: ______
- Estimate 76 + 34 by rounding each number to the nearest 10: ______
- Estimate 67 − 84 by rounding each number to the nearest 10: ______
- Estimate 66 + 30 by rounding each number to the nearest 10: ______
- Estimate 39 + 88 by rounding each number to the nearest 10: ______
- Estimate 86 − 21 by rounding each number to the nearest 10: ______
- Estimate 41 − 69 by rounding each number to the nearest 10: ______
- Estimate 55 + 31 by rounding each number to the nearest 10: ______
- Estimate 68 − 76 by rounding each number to the nearest 10: ______
- Estimate 70 − 65 by rounding each number to the nearest 10: ______
- Estimate 87 + 32 by rounding each number to the nearest 10: ______
- Estimate 70 − 21 by rounding each number to the nearest 10: ______
- Estimate 25 − 60 by rounding each number to the nearest 10: ______