Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 47 − 41 by rounding each number to the nearest 10: ______
- Estimate 22 − 88 by rounding each number to the nearest 10: ______
- Estimate 36 + 40 by rounding each number to the nearest 10: ______
- Estimate 65 + 70 by rounding each number to the nearest 10: ______
- Estimate 42 − 41 by rounding each number to the nearest 10: ______
- Estimate 21 + 30 by rounding each number to the nearest 10: ______
- Estimate 51 + 41 by rounding each number to the nearest 10: ______
- Estimate 60 + 72 by rounding each number to the nearest 10: ______
- Estimate 33 − 34 by rounding each number to the nearest 10: ______
- Estimate 42 − 33 by rounding each number to the nearest 10: ______
- Estimate 67 + 41 by rounding each number to the nearest 10: ______
- Estimate 78 + 85 by rounding each number to the nearest 10: ______
- Estimate 61 − 40 by rounding each number to the nearest 10: ______
- Estimate 82 + 61 by rounding each number to the nearest 10: ______
- Estimate 85 − 59 by rounding each number to the nearest 10: ______
- Estimate 46 + 63 by rounding each number to the nearest 10: ______
- Estimate 23 − 82 by rounding each number to the nearest 10: ______
- Estimate 73 − 81 by rounding each number to the nearest 10: ______
- Estimate 41 + 26 by rounding each number to the nearest 10: ______
- Estimate 55 − 24 by rounding each number to the nearest 10: ______