Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 + 66 by rounding each number to the nearest 10: ______
- Estimate 83 + 78 by rounding each number to the nearest 10: ______
- Estimate 21 − 24 by rounding each number to the nearest 10: ______
- Estimate 53 − 36 by rounding each number to the nearest 10: ______
- Estimate 37 − 78 by rounding each number to the nearest 10: ______
- Estimate 83 − 36 by rounding each number to the nearest 10: ______
- Estimate 86 + 32 by rounding each number to the nearest 10: ______
- Estimate 58 + 77 by rounding each number to the nearest 10: ______
- Estimate 66 − 87 by rounding each number to the nearest 10: ______
- Estimate 32 − 74 by rounding each number to the nearest 10: ______
- Estimate 83 + 74 by rounding each number to the nearest 10: ______
- Estimate 86 − 46 by rounding each number to the nearest 10: ______
- Estimate 26 − 57 by rounding each number to the nearest 10: ______
- Estimate 31 − 62 by rounding each number to the nearest 10: ______
- Estimate 60 + 59 by rounding each number to the nearest 10: ______
- Estimate 67 − 86 by rounding each number to the nearest 10: ______
- Estimate 34 + 25 by rounding each number to the nearest 10: ______
- Estimate 57 − 66 by rounding each number to the nearest 10: ______
- Estimate 60 − 28 by rounding each number to the nearest 10: ______
- Estimate 29 + 62 by rounding each number to the nearest 10: ______