Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 50 + 42 by rounding each number to the nearest 10: ______
- Estimate 41 − 60 by rounding each number to the nearest 10: ______
- Estimate 48 + 61 by rounding each number to the nearest 10: ______
- Estimate 59 + 74 by rounding each number to the nearest 10: ______
- Estimate 23 + 50 by rounding each number to the nearest 10: ______
- Estimate 42 + 59 by rounding each number to the nearest 10: ______
- Estimate 74 − 22 by rounding each number to the nearest 10: ______
- Estimate 51 + 70 by rounding each number to the nearest 10: ______
- Estimate 70 + 52 by rounding each number to the nearest 10: ______
- Estimate 82 − 48 by rounding each number to the nearest 10: ______
- Estimate 36 − 38 by rounding each number to the nearest 10: ______
- Estimate 82 − 65 by rounding each number to the nearest 10: ______
- Estimate 89 + 30 by rounding each number to the nearest 10: ______
- Estimate 71 + 26 by rounding each number to the nearest 10: ______
- Estimate 36 − 30 by rounding each number to the nearest 10: ______
- Estimate 22 + 38 by rounding each number to the nearest 10: ______
- Estimate 23 − 77 by rounding each number to the nearest 10: ______
- Estimate 34 + 36 by rounding each number to the nearest 10: ______
- Estimate 51 − 53 by rounding each number to the nearest 10: ______
- Estimate 47 + 87 by rounding each number to the nearest 10: ______