Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 31 + 29 by rounding each number to the nearest 10: ______
- Estimate 46 + 85 by rounding each number to the nearest 10: ______
- Estimate 39 − 22 by rounding each number to the nearest 10: ______
- Estimate 40 − 82 by rounding each number to the nearest 10: ______
- Estimate 74 − 56 by rounding each number to the nearest 10: ______
- Estimate 42 + 57 by rounding each number to the nearest 10: ______
- Estimate 62 − 27 by rounding each number to the nearest 10: ______
- Estimate 38 + 79 by rounding each number to the nearest 10: ______
- Estimate 60 − 46 by rounding each number to the nearest 10: ______
- Estimate 81 + 40 by rounding each number to the nearest 10: ______
- Estimate 58 + 41 by rounding each number to the nearest 10: ______
- Estimate 54 − 55 by rounding each number to the nearest 10: ______
- Estimate 51 + 52 by rounding each number to the nearest 10: ______
- Estimate 51 + 34 by rounding each number to the nearest 10: ______
- Estimate 25 − 68 by rounding each number to the nearest 10: ______
- Estimate 70 + 43 by rounding each number to the nearest 10: ______
- Estimate 33 + 68 by rounding each number to the nearest 10: ______
- Estimate 24 − 60 by rounding each number to the nearest 10: ______
- Estimate 57 − 64 by rounding each number to the nearest 10: ______
- Estimate 62 + 38 by rounding each number to the nearest 10: ______