Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 30 by rounding each number to the nearest 10: ______
- Estimate 49 − 62 by rounding each number to the nearest 10: ______
- Estimate 77 − 63 by rounding each number to the nearest 10: ______
- Estimate 26 − 45 by rounding each number to the nearest 10: ______
- Estimate 39 − 72 by rounding each number to the nearest 10: ______
- Estimate 82 − 53 by rounding each number to the nearest 10: ______
- Estimate 75 − 49 by rounding each number to the nearest 10: ______
- Estimate 65 − 44 by rounding each number to the nearest 10: ______
- Estimate 83 − 29 by rounding each number to the nearest 10: ______
- Estimate 23 − 41 by rounding each number to the nearest 10: ______
- Estimate 60 − 59 by rounding each number to the nearest 10: ______
- Estimate 63 − 75 by rounding each number to the nearest 10: ______
- Estimate 81 − 44 by rounding each number to the nearest 10: ______
- Estimate 40 + 45 by rounding each number to the nearest 10: ______
- Estimate 72 + 65 by rounding each number to the nearest 10: ______
- Estimate 29 − 47 by rounding each number to the nearest 10: ______
- Estimate 79 + 50 by rounding each number to the nearest 10: ______
- Estimate 46 − 49 by rounding each number to the nearest 10: ______
- Estimate 83 + 23 by rounding each number to the nearest 10: ______
- Estimate 30 + 73 by rounding each number to the nearest 10: ______