Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 + 74 by rounding each number to the nearest 10: ______
- Estimate 67 − 89 by rounding each number to the nearest 10: ______
- Estimate 23 − 80 by rounding each number to the nearest 10: ______
- Estimate 54 − 67 by rounding each number to the nearest 10: ______
- Estimate 83 + 39 by rounding each number to the nearest 10: ______
- Estimate 83 − 36 by rounding each number to the nearest 10: ______
- Estimate 60 + 79 by rounding each number to the nearest 10: ______
- Estimate 55 + 36 by rounding each number to the nearest 10: ______
- Estimate 58 + 68 by rounding each number to the nearest 10: ______
- Estimate 46 + 68 by rounding each number to the nearest 10: ______
- Estimate 69 + 79 by rounding each number to the nearest 10: ______
- Estimate 60 − 33 by rounding each number to the nearest 10: ______
- Estimate 30 + 84 by rounding each number to the nearest 10: ______
- Estimate 25 − 69 by rounding each number to the nearest 10: ______
- Estimate 79 + 64 by rounding each number to the nearest 10: ______
- Estimate 63 − 85 by rounding each number to the nearest 10: ______
- Estimate 36 + 46 by rounding each number to the nearest 10: ______
- Estimate 37 + 82 by rounding each number to the nearest 10: ______
- Estimate 37 − 73 by rounding each number to the nearest 10: ______
- Estimate 50 + 29 by rounding each number to the nearest 10: ______