Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 44 − 36 by rounding each number to the nearest 10: ______
- Estimate 44 + 85 by rounding each number to the nearest 10: ______
- Estimate 29 − 85 by rounding each number to the nearest 10: ______
- Estimate 28 + 21 by rounding each number to the nearest 10: ______
- Estimate 79 + 85 by rounding each number to the nearest 10: ______
- Estimate 36 − 75 by rounding each number to the nearest 10: ______
- Estimate 83 − 49 by rounding each number to the nearest 10: ______
- Estimate 81 − 67 by rounding each number to the nearest 10: ______
- Estimate 67 − 71 by rounding each number to the nearest 10: ______
- Estimate 53 + 57 by rounding each number to the nearest 10: ______
- Estimate 23 − 61 by rounding each number to the nearest 10: ______
- Estimate 42 + 34 by rounding each number to the nearest 10: ______
- Estimate 70 + 21 by rounding each number to the nearest 10: ______
- Estimate 53 − 25 by rounding each number to the nearest 10: ______
- Estimate 40 + 31 by rounding each number to the nearest 10: ______
- Estimate 56 − 87 by rounding each number to the nearest 10: ______
- Estimate 42 − 85 by rounding each number to the nearest 10: ______
- Estimate 53 − 26 by rounding each number to the nearest 10: ______
- Estimate 81 + 30 by rounding each number to the nearest 10: ______
- Estimate 29 − 60 by rounding each number to the nearest 10: ______