Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 − 89 by rounding each number to the nearest 10: ______
- Estimate 49 − 71 by rounding each number to the nearest 10: ______
- Estimate 60 + 60 by rounding each number to the nearest 10: ______
- Estimate 78 − 38 by rounding each number to the nearest 10: ______
- Estimate 53 − 46 by rounding each number to the nearest 10: ______
- Estimate 74 − 74 by rounding each number to the nearest 10: ______
- Estimate 31 − 26 by rounding each number to the nearest 10: ______
- Estimate 74 − 25 by rounding each number to the nearest 10: ______
- Estimate 80 − 81 by rounding each number to the nearest 10: ______
- Estimate 62 + 35 by rounding each number to the nearest 10: ______
- Estimate 74 − 65 by rounding each number to the nearest 10: ______
- Estimate 40 − 34 by rounding each number to the nearest 10: ______
- Estimate 37 + 57 by rounding each number to the nearest 10: ______
- Estimate 47 − 26 by rounding each number to the nearest 10: ______
- Estimate 68 + 26 by rounding each number to the nearest 10: ______
- Estimate 65 + 28 by rounding each number to the nearest 10: ______
- Estimate 26 + 59 by rounding each number to the nearest 10: ______
- Estimate 64 − 35 by rounding each number to the nearest 10: ______
- Estimate 39 − 22 by rounding each number to the nearest 10: ______
- Estimate 81 − 27 by rounding each number to the nearest 10: ______