Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 28 − 79 by rounding each number to the nearest 10: ______
- Estimate 53 − 35 by rounding each number to the nearest 10: ______
- Estimate 59 − 21 by rounding each number to the nearest 10: ______
- Estimate 74 + 77 by rounding each number to the nearest 10: ______
- Estimate 82 + 86 by rounding each number to the nearest 10: ______
- Estimate 54 + 77 by rounding each number to the nearest 10: ______
- Estimate 73 − 59 by rounding each number to the nearest 10: ______
- Estimate 51 − 73 by rounding each number to the nearest 10: ______
- Estimate 51 − 44 by rounding each number to the nearest 10: ______
- Estimate 23 + 76 by rounding each number to the nearest 10: ______
- Estimate 63 − 48 by rounding each number to the nearest 10: ______
- Estimate 53 + 59 by rounding each number to the nearest 10: ______
- Estimate 48 + 22 by rounding each number to the nearest 10: ______
- Estimate 82 − 67 by rounding each number to the nearest 10: ______
- Estimate 60 + 34 by rounding each number to the nearest 10: ______
- Estimate 70 + 39 by rounding each number to the nearest 10: ______
- Estimate 70 − 76 by rounding each number to the nearest 10: ______
- Estimate 42 + 84 by rounding each number to the nearest 10: ______
- Estimate 66 + 41 by rounding each number to the nearest 10: ______
- Estimate 24 − 85 by rounding each number to the nearest 10: ______