Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 + 65 by rounding each number to the nearest 10: ______
- Estimate 87 − 71 by rounding each number to the nearest 10: ______
- Estimate 74 − 55 by rounding each number to the nearest 10: ______
- Estimate 36 + 29 by rounding each number to the nearest 10: ______
- Estimate 31 − 23 by rounding each number to the nearest 10: ______
- Estimate 83 − 24 by rounding each number to the nearest 10: ______
- Estimate 33 + 52 by rounding each number to the nearest 10: ______
- Estimate 59 + 52 by rounding each number to the nearest 10: ______
- Estimate 48 + 64 by rounding each number to the nearest 10: ______
- Estimate 26 + 85 by rounding each number to the nearest 10: ______
- Estimate 26 + 74 by rounding each number to the nearest 10: ______
- Estimate 23 + 59 by rounding each number to the nearest 10: ______
- Estimate 30 − 42 by rounding each number to the nearest 10: ______
- Estimate 31 − 60 by rounding each number to the nearest 10: ______
- Estimate 28 + 25 by rounding each number to the nearest 10: ______
- Estimate 59 − 56 by rounding each number to the nearest 10: ______
- Estimate 21 − 22 by rounding each number to the nearest 10: ______
- Estimate 82 + 53 by rounding each number to the nearest 10: ______
- Estimate 21 − 40 by rounding each number to the nearest 10: ______
- Estimate 53 + 39 by rounding each number to the nearest 10: ______