Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 − 81 by rounding each number to the nearest 10: ______
- Estimate 83 − 29 by rounding each number to the nearest 10: ______
- Estimate 70 + 65 by rounding each number to the nearest 10: ______
- Estimate 47 − 42 by rounding each number to the nearest 10: ______
- Estimate 29 + 69 by rounding each number to the nearest 10: ______
- Estimate 54 − 41 by rounding each number to the nearest 10: ______
- Estimate 84 + 55 by rounding each number to the nearest 10: ______
- Estimate 45 + 78 by rounding each number to the nearest 10: ______
- Estimate 58 + 25 by rounding each number to the nearest 10: ______
- Estimate 58 − 49 by rounding each number to the nearest 10: ______
- Estimate 38 − 30 by rounding each number to the nearest 10: ______
- Estimate 24 + 28 by rounding each number to the nearest 10: ______
- Estimate 72 + 34 by rounding each number to the nearest 10: ______
- Estimate 73 + 82 by rounding each number to the nearest 10: ______
- Estimate 76 + 30 by rounding each number to the nearest 10: ______
- Estimate 34 + 60 by rounding each number to the nearest 10: ______
- Estimate 63 − 50 by rounding each number to the nearest 10: ______
- Estimate 43 + 80 by rounding each number to the nearest 10: ______
- Estimate 45 − 48 by rounding each number to the nearest 10: ______
- Estimate 47 + 84 by rounding each number to the nearest 10: ______