Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 75 + 40 by rounding each number to the nearest 10: ______
- Estimate 70 − 52 by rounding each number to the nearest 10: ______
- Estimate 60 + 61 by rounding each number to the nearest 10: ______
- Estimate 88 − 45 by rounding each number to the nearest 10: ______
- Estimate 52 + 55 by rounding each number to the nearest 10: ______
- Estimate 81 + 26 by rounding each number to the nearest 10: ______
- Estimate 85 − 43 by rounding each number to the nearest 10: ______
- Estimate 67 + 40 by rounding each number to the nearest 10: ______
- Estimate 66 + 55 by rounding each number to the nearest 10: ______
- Estimate 59 + 56 by rounding each number to the nearest 10: ______
- Estimate 49 + 60 by rounding each number to the nearest 10: ______
- Estimate 63 − 22 by rounding each number to the nearest 10: ______
- Estimate 68 − 21 by rounding each number to the nearest 10: ______
- Estimate 50 + 30 by rounding each number to the nearest 10: ______
- Estimate 84 + 83 by rounding each number to the nearest 10: ______
- Estimate 79 − 24 by rounding each number to the nearest 10: ______
- Estimate 39 − 69 by rounding each number to the nearest 10: ______
- Estimate 52 + 44 by rounding each number to the nearest 10: ______
- Estimate 54 + 23 by rounding each number to the nearest 10: ______
- Estimate 85 + 78 by rounding each number to the nearest 10: ______