Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 55 − 87 by rounding each number to the nearest 10: ______
- Estimate 62 − 71 by rounding each number to the nearest 10: ______
- Estimate 78 + 78 by rounding each number to the nearest 10: ______
- Estimate 60 − 44 by rounding each number to the nearest 10: ______
- Estimate 78 − 26 by rounding each number to the nearest 10: ______
- Estimate 47 − 67 by rounding each number to the nearest 10: ______
- Estimate 33 + 73 by rounding each number to the nearest 10: ______
- Estimate 82 + 66 by rounding each number to the nearest 10: ______
- Estimate 88 − 45 by rounding each number to the nearest 10: ______
- Estimate 46 + 60 by rounding each number to the nearest 10: ______
- Estimate 34 − 34 by rounding each number to the nearest 10: ______
- Estimate 76 + 87 by rounding each number to the nearest 10: ______
- Estimate 45 + 65 by rounding each number to the nearest 10: ______
- Estimate 84 − 79 by rounding each number to the nearest 10: ______
- Estimate 80 + 83 by rounding each number to the nearest 10: ______
- Estimate 84 + 75 by rounding each number to the nearest 10: ______
- Estimate 47 − 80 by rounding each number to the nearest 10: ______
- Estimate 83 + 78 by rounding each number to the nearest 10: ______
- Estimate 30 + 82 by rounding each number to the nearest 10: ______
- Estimate 42 + 65 by rounding each number to the nearest 10: ______