Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 25 − 30 by rounding each number to the nearest 10: ______
- Estimate 46 + 47 by rounding each number to the nearest 10: ______
- Estimate 84 − 51 by rounding each number to the nearest 10: ______
- Estimate 61 + 74 by rounding each number to the nearest 10: ______
- Estimate 50 − 78 by rounding each number to the nearest 10: ______
- Estimate 79 − 55 by rounding each number to the nearest 10: ______
- Estimate 39 − 43 by rounding each number to the nearest 10: ______
- Estimate 62 − 82 by rounding each number to the nearest 10: ______
- Estimate 75 + 57 by rounding each number to the nearest 10: ______
- Estimate 45 − 84 by rounding each number to the nearest 10: ______
- Estimate 34 − 43 by rounding each number to the nearest 10: ______
- Estimate 72 − 55 by rounding each number to the nearest 10: ______
- Estimate 56 − 82 by rounding each number to the nearest 10: ______
- Estimate 89 + 49 by rounding each number to the nearest 10: ______
- Estimate 42 − 42 by rounding each number to the nearest 10: ______
- Estimate 39 + 67 by rounding each number to the nearest 10: ______
- Estimate 76 + 74 by rounding each number to the nearest 10: ______
- Estimate 47 − 46 by rounding each number to the nearest 10: ______
- Estimate 82 + 49 by rounding each number to the nearest 10: ______
- Estimate 27 + 36 by rounding each number to the nearest 10: ______