Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 73 + 46 by rounding each number to the nearest 10: ______
- Estimate 34 − 81 by rounding each number to the nearest 10: ______
- Estimate 40 − 26 by rounding each number to the nearest 10: ______
- Estimate 31 + 21 by rounding each number to the nearest 10: ______
- Estimate 78 + 48 by rounding each number to the nearest 10: ______
- Estimate 86 − 59 by rounding each number to the nearest 10: ______
- Estimate 36 − 30 by rounding each number to the nearest 10: ______
- Estimate 59 − 68 by rounding each number to the nearest 10: ______
- Estimate 40 + 48 by rounding each number to the nearest 10: ______
- Estimate 36 − 59 by rounding each number to the nearest 10: ______
- Estimate 84 + 27 by rounding each number to the nearest 10: ______
- Estimate 39 + 40 by rounding each number to the nearest 10: ______
- Estimate 22 − 88 by rounding each number to the nearest 10: ______
- Estimate 41 + 82 by rounding each number to the nearest 10: ______
- Estimate 75 − 70 by rounding each number to the nearest 10: ______
- Estimate 84 + 36 by rounding each number to the nearest 10: ______
- Estimate 72 + 84 by rounding each number to the nearest 10: ______
- Estimate 70 − 66 by rounding each number to the nearest 10: ______
- Estimate 37 − 36 by rounding each number to the nearest 10: ______
- Estimate 27 + 71 by rounding each number to the nearest 10: ______