Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 57 − 59 by rounding each number to the nearest 10: ______
- Estimate 72 − 79 by rounding each number to the nearest 10: ______
- Estimate 76 − 68 by rounding each number to the nearest 10: ______
- Estimate 69 − 82 by rounding each number to the nearest 10: ______
- Estimate 36 + 75 by rounding each number to the nearest 10: ______
- Estimate 28 − 21 by rounding each number to the nearest 10: ______
- Estimate 39 + 83 by rounding each number to the nearest 10: ______
- Estimate 25 + 24 by rounding each number to the nearest 10: ______
- Estimate 33 − 32 by rounding each number to the nearest 10: ______
- Estimate 70 + 82 by rounding each number to the nearest 10: ______
- Estimate 62 + 31 by rounding each number to the nearest 10: ______
- Estimate 74 + 29 by rounding each number to the nearest 10: ______
- Estimate 62 − 36 by rounding each number to the nearest 10: ______
- Estimate 45 − 54 by rounding each number to the nearest 10: ______
- Estimate 80 − 88 by rounding each number to the nearest 10: ______
- Estimate 89 − 66 by rounding each number to the nearest 10: ______
- Estimate 82 − 81 by rounding each number to the nearest 10: ______
- Estimate 47 − 49 by rounding each number to the nearest 10: ______
- Estimate 72 − 68 by rounding each number to the nearest 10: ______
- Estimate 68 − 51 by rounding each number to the nearest 10: ______