Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 − 40 by rounding each number to the nearest 10: ______
- Estimate 48 − 63 by rounding each number to the nearest 10: ______
- Estimate 70 + 30 by rounding each number to the nearest 10: ______
- Estimate 26 + 60 by rounding each number to the nearest 10: ______
- Estimate 86 − 67 by rounding each number to the nearest 10: ______
- Estimate 24 + 30 by rounding each number to the nearest 10: ______
- Estimate 41 + 79 by rounding each number to the nearest 10: ______
- Estimate 60 − 73 by rounding each number to the nearest 10: ______
- Estimate 66 + 28 by rounding each number to the nearest 10: ______
- Estimate 79 − 68 by rounding each number to the nearest 10: ______
- Estimate 67 − 35 by rounding each number to the nearest 10: ______
- Estimate 41 + 77 by rounding each number to the nearest 10: ______
- Estimate 28 + 74 by rounding each number to the nearest 10: ______
- Estimate 25 + 82 by rounding each number to the nearest 10: ______
- Estimate 38 + 89 by rounding each number to the nearest 10: ______
- Estimate 39 − 75 by rounding each number to the nearest 10: ______
- Estimate 82 + 72 by rounding each number to the nearest 10: ______
- Estimate 60 + 21 by rounding each number to the nearest 10: ______
- Estimate 73 + 68 by rounding each number to the nearest 10: ______
- Estimate 71 − 54 by rounding each number to the nearest 10: ______