Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 45 − 49 by rounding each number to the nearest 10: ______
- Estimate 59 + 28 by rounding each number to the nearest 10: ______
- Estimate 31 − 24 by rounding each number to the nearest 10: ______
- Estimate 84 + 73 by rounding each number to the nearest 10: ______
- Estimate 62 + 50 by rounding each number to the nearest 10: ______
- Estimate 68 − 43 by rounding each number to the nearest 10: ______
- Estimate 35 + 69 by rounding each number to the nearest 10: ______
- Estimate 41 − 65 by rounding each number to the nearest 10: ______
- Estimate 34 − 43 by rounding each number to the nearest 10: ______
- Estimate 45 + 60 by rounding each number to the nearest 10: ______
- Estimate 78 − 71 by rounding each number to the nearest 10: ______
- Estimate 67 + 35 by rounding each number to the nearest 10: ______
- Estimate 68 + 67 by rounding each number to the nearest 10: ______
- Estimate 23 + 82 by rounding each number to the nearest 10: ______
- Estimate 73 − 59 by rounding each number to the nearest 10: ______
- Estimate 54 + 44 by rounding each number to the nearest 10: ______
- Estimate 21 + 66 by rounding each number to the nearest 10: ______
- Estimate 44 − 88 by rounding each number to the nearest 10: ______
- Estimate 87 + 55 by rounding each number to the nearest 10: ______
- Estimate 25 − 71 by rounding each number to the nearest 10: ______