Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 76 + 29 by rounding each number to the nearest 10: ______
- Estimate 25 + 69 by rounding each number to the nearest 10: ______
- Estimate 43 − 85 by rounding each number to the nearest 10: ______
- Estimate 63 − 55 by rounding each number to the nearest 10: ______
- Estimate 83 + 61 by rounding each number to the nearest 10: ______
- Estimate 26 − 71 by rounding each number to the nearest 10: ______
- Estimate 38 − 46 by rounding each number to the nearest 10: ______
- Estimate 23 − 82 by rounding each number to the nearest 10: ______
- Estimate 63 − 34 by rounding each number to the nearest 10: ______
- Estimate 22 − 45 by rounding each number to the nearest 10: ______
- Estimate 75 + 74 by rounding each number to the nearest 10: ______
- Estimate 33 + 66 by rounding each number to the nearest 10: ______
- Estimate 27 − 77 by rounding each number to the nearest 10: ______
- Estimate 48 + 63 by rounding each number to the nearest 10: ______
- Estimate 80 − 53 by rounding each number to the nearest 10: ______
- Estimate 66 − 87 by rounding each number to the nearest 10: ______
- Estimate 40 + 51 by rounding each number to the nearest 10: ______
- Estimate 83 − 71 by rounding each number to the nearest 10: ______
- Estimate 72 + 21 by rounding each number to the nearest 10: ______
- Estimate 48 − 38 by rounding each number to the nearest 10: ______