Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 − 71 by rounding each number to the nearest 10: ______
- Estimate 28 + 25 by rounding each number to the nearest 10: ______
- Estimate 78 − 29 by rounding each number to the nearest 10: ______
- Estimate 44 − 60 by rounding each number to the nearest 10: ______
- Estimate 52 + 60 by rounding each number to the nearest 10: ______
- Estimate 85 + 54 by rounding each number to the nearest 10: ______
- Estimate 36 − 56 by rounding each number to the nearest 10: ______
- Estimate 41 + 30 by rounding each number to the nearest 10: ______
- Estimate 23 − 89 by rounding each number to the nearest 10: ______
- Estimate 33 + 43 by rounding each number to the nearest 10: ______
- Estimate 27 − 29 by rounding each number to the nearest 10: ______
- Estimate 52 − 47 by rounding each number to the nearest 10: ______
- Estimate 82 + 86 by rounding each number to the nearest 10: ______
- Estimate 34 − 22 by rounding each number to the nearest 10: ______
- Estimate 25 − 80 by rounding each number to the nearest 10: ______
- Estimate 24 + 51 by rounding each number to the nearest 10: ______
- Estimate 65 + 55 by rounding each number to the nearest 10: ______
- Estimate 31 + 81 by rounding each number to the nearest 10: ______
- Estimate 78 + 75 by rounding each number to the nearest 10: ______
- Estimate 59 − 52 by rounding each number to the nearest 10: ______