Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 − 51 by rounding each number to the nearest 10: ______
- Estimate 63 − 89 by rounding each number to the nearest 10: ______
- Estimate 56 − 60 by rounding each number to the nearest 10: ______
- Estimate 43 − 40 by rounding each number to the nearest 10: ______
- Estimate 60 + 25 by rounding each number to the nearest 10: ______
- Estimate 40 − 66 by rounding each number to the nearest 10: ______
- Estimate 42 − 41 by rounding each number to the nearest 10: ______
- Estimate 21 − 41 by rounding each number to the nearest 10: ______
- Estimate 39 + 26 by rounding each number to the nearest 10: ______
- Estimate 76 − 39 by rounding each number to the nearest 10: ______
- Estimate 28 + 72 by rounding each number to the nearest 10: ______
- Estimate 23 + 29 by rounding each number to the nearest 10: ______
- Estimate 34 + 22 by rounding each number to the nearest 10: ______
- Estimate 36 + 65 by rounding each number to the nearest 10: ______
- Estimate 64 − 26 by rounding each number to the nearest 10: ______
- Estimate 78 + 69 by rounding each number to the nearest 10: ______
- Estimate 36 − 66 by rounding each number to the nearest 10: ______
- Estimate 43 + 48 by rounding each number to the nearest 10: ______
- Estimate 38 + 81 by rounding each number to the nearest 10: ______
- Estimate 69 + 82 by rounding each number to the nearest 10: ______