Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 33 by rounding each number to the nearest 10: ______
- Estimate 63 + 24 by rounding each number to the nearest 10: ______
- Estimate 22 − 49 by rounding each number to the nearest 10: ______
- Estimate 34 − 76 by rounding each number to the nearest 10: ______
- Estimate 83 − 67 by rounding each number to the nearest 10: ______
- Estimate 66 − 39 by rounding each number to the nearest 10: ______
- Estimate 29 − 39 by rounding each number to the nearest 10: ______
- Estimate 75 − 69 by rounding each number to the nearest 10: ______
- Estimate 31 + 68 by rounding each number to the nearest 10: ______
- Estimate 47 − 40 by rounding each number to the nearest 10: ______
- Estimate 39 − 80 by rounding each number to the nearest 10: ______
- Estimate 61 − 46 by rounding each number to the nearest 10: ______
- Estimate 38 − 34 by rounding each number to the nearest 10: ______
- Estimate 70 + 88 by rounding each number to the nearest 10: ______
- Estimate 22 − 85 by rounding each number to the nearest 10: ______
- Estimate 43 − 49 by rounding each number to the nearest 10: ______
- Estimate 60 − 34 by rounding each number to the nearest 10: ______
- Estimate 40 + 49 by rounding each number to the nearest 10: ______
- Estimate 85 + 85 by rounding each number to the nearest 10: ______
- Estimate 67 − 43 by rounding each number to the nearest 10: ______