Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 34 + 25 by rounding each number to the nearest 10: ______
- Estimate 51 − 66 by rounding each number to the nearest 10: ______
- Estimate 75 − 74 by rounding each number to the nearest 10: ______
- Estimate 46 + 70 by rounding each number to the nearest 10: ______
- Estimate 40 + 74 by rounding each number to the nearest 10: ______
- Estimate 87 + 39 by rounding each number to the nearest 10: ______
- Estimate 48 − 25 by rounding each number to the nearest 10: ______
- Estimate 29 + 80 by rounding each number to the nearest 10: ______
- Estimate 78 + 60 by rounding each number to the nearest 10: ______
- Estimate 69 − 29 by rounding each number to the nearest 10: ______
- Estimate 88 − 38 by rounding each number to the nearest 10: ______
- Estimate 37 + 24 by rounding each number to the nearest 10: ______
- Estimate 86 − 40 by rounding each number to the nearest 10: ______
- Estimate 74 + 81 by rounding each number to the nearest 10: ______
- Estimate 21 + 83 by rounding each number to the nearest 10: ______
- Estimate 81 + 86 by rounding each number to the nearest 10: ______
- Estimate 26 + 61 by rounding each number to the nearest 10: ______
- Estimate 87 − 47 by rounding each number to the nearest 10: ______
- Estimate 57 + 70 by rounding each number to the nearest 10: ______
- Estimate 87 − 47 by rounding each number to the nearest 10: ______