Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 − 66 by rounding each number to the nearest 10: ______
- Estimate 56 + 61 by rounding each number to the nearest 10: ______
- Estimate 43 + 53 by rounding each number to the nearest 10: ______
- Estimate 53 − 65 by rounding each number to the nearest 10: ______
- Estimate 54 − 89 by rounding each number to the nearest 10: ______
- Estimate 39 − 26 by rounding each number to the nearest 10: ______
- Estimate 82 − 55 by rounding each number to the nearest 10: ______
- Estimate 74 − 59 by rounding each number to the nearest 10: ______
- Estimate 39 + 36 by rounding each number to the nearest 10: ______
- Estimate 89 − 26 by rounding each number to the nearest 10: ______
- Estimate 60 − 86 by rounding each number to the nearest 10: ______
- Estimate 49 + 36 by rounding each number to the nearest 10: ______
- Estimate 39 − 69 by rounding each number to the nearest 10: ______
- Estimate 51 − 71 by rounding each number to the nearest 10: ______
- Estimate 24 + 51 by rounding each number to the nearest 10: ______
- Estimate 35 − 78 by rounding each number to the nearest 10: ______
- Estimate 37 + 74 by rounding each number to the nearest 10: ______
- Estimate 44 − 35 by rounding each number to the nearest 10: ______
- Estimate 35 − 58 by rounding each number to the nearest 10: ______
- Estimate 37 − 44 by rounding each number to the nearest 10: ______