Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 + 39 by rounding each number to the nearest 10: ______
- Estimate 85 − 51 by rounding each number to the nearest 10: ______
- Estimate 30 − 25 by rounding each number to the nearest 10: ______
- Estimate 25 − 66 by rounding each number to the nearest 10: ______
- Estimate 74 + 82 by rounding each number to the nearest 10: ______
- Estimate 30 + 21 by rounding each number to the nearest 10: ______
- Estimate 47 − 66 by rounding each number to the nearest 10: ______
- Estimate 67 − 42 by rounding each number to the nearest 10: ______
- Estimate 27 − 38 by rounding each number to the nearest 10: ______
- Estimate 82 + 22 by rounding each number to the nearest 10: ______
- Estimate 42 + 45 by rounding each number to the nearest 10: ______
- Estimate 45 − 25 by rounding each number to the nearest 10: ______
- Estimate 63 − 58 by rounding each number to the nearest 10: ______
- Estimate 26 + 50 by rounding each number to the nearest 10: ______
- Estimate 31 − 39 by rounding each number to the nearest 10: ______
- Estimate 62 − 43 by rounding each number to the nearest 10: ______
- Estimate 73 + 83 by rounding each number to the nearest 10: ______
- Estimate 66 − 89 by rounding each number to the nearest 10: ______
- Estimate 38 + 60 by rounding each number to the nearest 10: ______
- Estimate 73 − 39 by rounding each number to the nearest 10: ______