Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 58 − 33 by rounding each number to the nearest 10: ______
- Estimate 58 + 83 by rounding each number to the nearest 10: ______
- Estimate 38 + 66 by rounding each number to the nearest 10: ______
- Estimate 32 − 86 by rounding each number to the nearest 10: ______
- Estimate 85 − 32 by rounding each number to the nearest 10: ______
- Estimate 59 − 28 by rounding each number to the nearest 10: ______
- Estimate 30 + 88 by rounding each number to the nearest 10: ______
- Estimate 32 + 33 by rounding each number to the nearest 10: ______
- Estimate 21 − 67 by rounding each number to the nearest 10: ______
- Estimate 79 − 78 by rounding each number to the nearest 10: ______
- Estimate 35 − 39 by rounding each number to the nearest 10: ______
- Estimate 25 + 38 by rounding each number to the nearest 10: ______
- Estimate 70 − 89 by rounding each number to the nearest 10: ______
- Estimate 39 + 21 by rounding each number to the nearest 10: ______
- Estimate 78 + 50 by rounding each number to the nearest 10: ______
- Estimate 85 − 60 by rounding each number to the nearest 10: ______
- Estimate 75 − 77 by rounding each number to the nearest 10: ______
- Estimate 54 − 39 by rounding each number to the nearest 10: ______
- Estimate 60 + 69 by rounding each number to the nearest 10: ______
- Estimate 21 − 83 by rounding each number to the nearest 10: ______