Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 58 + 38 by rounding each number to the nearest 10: ______
- Estimate 54 − 58 by rounding each number to the nearest 10: ______
- Estimate 21 + 24 by rounding each number to the nearest 10: ______
- Estimate 75 − 36 by rounding each number to the nearest 10: ______
- Estimate 53 − 81 by rounding each number to the nearest 10: ______
- Estimate 57 − 69 by rounding each number to the nearest 10: ______
- Estimate 38 + 83 by rounding each number to the nearest 10: ______
- Estimate 30 − 74 by rounding each number to the nearest 10: ______
- Estimate 67 + 79 by rounding each number to the nearest 10: ______
- Estimate 37 + 65 by rounding each number to the nearest 10: ______
- Estimate 63 − 29 by rounding each number to the nearest 10: ______
- Estimate 43 − 85 by rounding each number to the nearest 10: ______
- Estimate 46 − 55 by rounding each number to the nearest 10: ______
- Estimate 67 − 40 by rounding each number to the nearest 10: ______
- Estimate 60 − 71 by rounding each number to the nearest 10: ______
- Estimate 61 − 66 by rounding each number to the nearest 10: ______
- Estimate 39 + 79 by rounding each number to the nearest 10: ______
- Estimate 53 − 40 by rounding each number to the nearest 10: ______
- Estimate 72 − 77 by rounding each number to the nearest 10: ______
- Estimate 55 + 49 by rounding each number to the nearest 10: ______