Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 25 + 60 by rounding each number to the nearest 10: ______
- Estimate 30 − 47 by rounding each number to the nearest 10: ______
- Estimate 54 + 70 by rounding each number to the nearest 10: ______
- Estimate 61 + 68 by rounding each number to the nearest 10: ______
- Estimate 82 + 70 by rounding each number to the nearest 10: ______
- Estimate 64 + 79 by rounding each number to the nearest 10: ______
- Estimate 59 + 77 by rounding each number to the nearest 10: ______
- Estimate 68 − 81 by rounding each number to the nearest 10: ______
- Estimate 50 − 48 by rounding each number to the nearest 10: ______
- Estimate 32 + 52 by rounding each number to the nearest 10: ______
- Estimate 49 + 52 by rounding each number to the nearest 10: ______
- Estimate 41 + 29 by rounding each number to the nearest 10: ______
- Estimate 60 − 53 by rounding each number to the nearest 10: ______
- Estimate 65 + 72 by rounding each number to the nearest 10: ______
- Estimate 22 − 66 by rounding each number to the nearest 10: ______
- Estimate 29 − 86 by rounding each number to the nearest 10: ______
- Estimate 57 − 80 by rounding each number to the nearest 10: ______
- Estimate 25 + 25 by rounding each number to the nearest 10: ______
- Estimate 26 + 51 by rounding each number to the nearest 10: ______
- Estimate 54 + 84 by rounding each number to the nearest 10: ______