Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 − 77 by rounding each number to the nearest 10: ______
- Estimate 43 + 53 by rounding each number to the nearest 10: ______
- Estimate 32 − 54 by rounding each number to the nearest 10: ______
- Estimate 82 − 25 by rounding each number to the nearest 10: ______
- Estimate 42 + 34 by rounding each number to the nearest 10: ______
- Estimate 45 − 70 by rounding each number to the nearest 10: ______
- Estimate 83 + 78 by rounding each number to the nearest 10: ______
- Estimate 74 − 45 by rounding each number to the nearest 10: ______
- Estimate 39 − 61 by rounding each number to the nearest 10: ______
- Estimate 61 + 68 by rounding each number to the nearest 10: ______
- Estimate 41 − 33 by rounding each number to the nearest 10: ______
- Estimate 60 + 75 by rounding each number to the nearest 10: ______
- Estimate 71 − 85 by rounding each number to the nearest 10: ______
- Estimate 87 − 62 by rounding each number to the nearest 10: ______
- Estimate 68 + 60 by rounding each number to the nearest 10: ______
- Estimate 83 − 49 by rounding each number to the nearest 10: ______
- Estimate 67 − 87 by rounding each number to the nearest 10: ______
- Estimate 49 − 57 by rounding each number to the nearest 10: ______
- Estimate 57 + 45 by rounding each number to the nearest 10: ______
- Estimate 22 + 63 by rounding each number to the nearest 10: ______