Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 80 − 78 by rounding each number to the nearest 10: ______
- Estimate 37 + 72 by rounding each number to the nearest 10: ______
- Estimate 33 − 24 by rounding each number to the nearest 10: ______
- Estimate 49 + 88 by rounding each number to the nearest 10: ______
- Estimate 50 + 36 by rounding each number to the nearest 10: ______
- Estimate 41 + 42 by rounding each number to the nearest 10: ______
- Estimate 76 + 31 by rounding each number to the nearest 10: ______
- Estimate 33 − 66 by rounding each number to the nearest 10: ______
- Estimate 47 − 32 by rounding each number to the nearest 10: ______
- Estimate 22 − 23 by rounding each number to the nearest 10: ______
- Estimate 41 − 41 by rounding each number to the nearest 10: ______
- Estimate 22 − 22 by rounding each number to the nearest 10: ______
- Estimate 84 + 68 by rounding each number to the nearest 10: ______
- Estimate 39 + 22 by rounding each number to the nearest 10: ______
- Estimate 51 + 36 by rounding each number to the nearest 10: ______
- Estimate 30 − 83 by rounding each number to the nearest 10: ______
- Estimate 82 − 45 by rounding each number to the nearest 10: ______
- Estimate 27 − 65 by rounding each number to the nearest 10: ______
- Estimate 29 + 30 by rounding each number to the nearest 10: ______
- Estimate 33 + 78 by rounding each number to the nearest 10: ______