Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 61 by rounding each number to the nearest 10: ______
- Estimate 76 + 74 by rounding each number to the nearest 10: ______
- Estimate 73 + 49 by rounding each number to the nearest 10: ______
- Estimate 75 − 35 by rounding each number to the nearest 10: ______
- Estimate 41 + 72 by rounding each number to the nearest 10: ______
- Estimate 28 + 52 by rounding each number to the nearest 10: ______
- Estimate 55 + 55 by rounding each number to the nearest 10: ______
- Estimate 81 + 52 by rounding each number to the nearest 10: ______
- Estimate 75 + 73 by rounding each number to the nearest 10: ______
- Estimate 58 − 74 by rounding each number to the nearest 10: ______
- Estimate 81 + 52 by rounding each number to the nearest 10: ______
- Estimate 82 + 21 by rounding each number to the nearest 10: ______
- Estimate 24 + 36 by rounding each number to the nearest 10: ______
- Estimate 89 − 89 by rounding each number to the nearest 10: ______
- Estimate 68 + 73 by rounding each number to the nearest 10: ______
- Estimate 76 − 69 by rounding each number to the nearest 10: ______
- Estimate 79 + 42 by rounding each number to the nearest 10: ______
- Estimate 78 + 78 by rounding each number to the nearest 10: ______
- Estimate 63 + 21 by rounding each number to the nearest 10: ______
- Estimate 63 + 82 by rounding each number to the nearest 10: ______