Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 + 29 by rounding each number to the nearest 10: ______
- Estimate 39 − 78 by rounding each number to the nearest 10: ______
- Estimate 30 − 25 by rounding each number to the nearest 10: ______
- Estimate 52 − 69 by rounding each number to the nearest 10: ______
- Estimate 22 − 23 by rounding each number to the nearest 10: ______
- Estimate 22 − 38 by rounding each number to the nearest 10: ______
- Estimate 40 − 81 by rounding each number to the nearest 10: ______
- Estimate 31 + 41 by rounding each number to the nearest 10: ______
- Estimate 86 − 86 by rounding each number to the nearest 10: ______
- Estimate 55 + 79 by rounding each number to the nearest 10: ______
- Estimate 65 − 61 by rounding each number to the nearest 10: ______
- Estimate 79 − 39 by rounding each number to the nearest 10: ______
- Estimate 86 + 25 by rounding each number to the nearest 10: ______
- Estimate 45 + 56 by rounding each number to the nearest 10: ______
- Estimate 39 + 30 by rounding each number to the nearest 10: ______
- Estimate 63 − 25 by rounding each number to the nearest 10: ______
- Estimate 79 + 87 by rounding each number to the nearest 10: ______
- Estimate 81 + 65 by rounding each number to the nearest 10: ______
- Estimate 80 + 34 by rounding each number to the nearest 10: ______
- Estimate 25 − 39 by rounding each number to the nearest 10: ______