Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 28 − 45 by rounding each number to the nearest 10: ______
- Estimate 24 − 64 by rounding each number to the nearest 10: ______
- Estimate 48 − 62 by rounding each number to the nearest 10: ______
- Estimate 60 + 64 by rounding each number to the nearest 10: ______
- Estimate 23 + 63 by rounding each number to the nearest 10: ______
- Estimate 70 − 26 by rounding each number to the nearest 10: ______
- Estimate 54 − 41 by rounding each number to the nearest 10: ______
- Estimate 43 + 84 by rounding each number to the nearest 10: ______
- Estimate 70 − 42 by rounding each number to the nearest 10: ______
- Estimate 40 − 59 by rounding each number to the nearest 10: ______
- Estimate 89 − 60 by rounding each number to the nearest 10: ______
- Estimate 39 − 31 by rounding each number to the nearest 10: ______
- Estimate 48 − 38 by rounding each number to the nearest 10: ______
- Estimate 74 + 29 by rounding each number to the nearest 10: ______
- Estimate 68 + 25 by rounding each number to the nearest 10: ______
- Estimate 37 + 49 by rounding each number to the nearest 10: ______
- Estimate 28 − 26 by rounding each number to the nearest 10: ______
- Estimate 54 + 24 by rounding each number to the nearest 10: ______
- Estimate 82 − 22 by rounding each number to the nearest 10: ______
- Estimate 28 − 65 by rounding each number to the nearest 10: ______