Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 + 61 by rounding each number to the nearest 10: ______
- Estimate 49 − 35 by rounding each number to the nearest 10: ______
- Estimate 68 + 52 by rounding each number to the nearest 10: ______
- Estimate 31 + 71 by rounding each number to the nearest 10: ______
- Estimate 21 − 85 by rounding each number to the nearest 10: ______
- Estimate 82 + 25 by rounding each number to the nearest 10: ______
- Estimate 53 + 45 by rounding each number to the nearest 10: ______
- Estimate 83 − 39 by rounding each number to the nearest 10: ______
- Estimate 75 − 31 by rounding each number to the nearest 10: ______
- Estimate 85 − 59 by rounding each number to the nearest 10: ______
- Estimate 46 + 87 by rounding each number to the nearest 10: ______
- Estimate 24 + 56 by rounding each number to the nearest 10: ______
- Estimate 76 + 52 by rounding each number to the nearest 10: ______
- Estimate 52 + 87 by rounding each number to the nearest 10: ______
- Estimate 86 − 61 by rounding each number to the nearest 10: ______
- Estimate 43 + 22 by rounding each number to the nearest 10: ______
- Estimate 67 + 70 by rounding each number to the nearest 10: ______
- Estimate 83 − 54 by rounding each number to the nearest 10: ______
- Estimate 67 − 59 by rounding each number to the nearest 10: ______
- Estimate 29 − 73 by rounding each number to the nearest 10: ______