Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 25 − 63 by rounding each number to the nearest 10: ______
- Estimate 29 + 21 by rounding each number to the nearest 10: ______
- Estimate 46 − 73 by rounding each number to the nearest 10: ______
- Estimate 56 + 89 by rounding each number to the nearest 10: ______
- Estimate 71 + 41 by rounding each number to the nearest 10: ______
- Estimate 75 + 73 by rounding each number to the nearest 10: ______
- Estimate 60 − 42 by rounding each number to the nearest 10: ______
- Estimate 86 − 26 by rounding each number to the nearest 10: ______
- Estimate 70 − 61 by rounding each number to the nearest 10: ______
- Estimate 41 + 85 by rounding each number to the nearest 10: ______
- Estimate 41 + 37 by rounding each number to the nearest 10: ______
- Estimate 49 + 74 by rounding each number to the nearest 10: ______
- Estimate 36 + 82 by rounding each number to the nearest 10: ______
- Estimate 69 − 45 by rounding each number to the nearest 10: ______
- Estimate 48 + 36 by rounding each number to the nearest 10: ______
- Estimate 26 + 86 by rounding each number to the nearest 10: ______
- Estimate 75 − 43 by rounding each number to the nearest 10: ______
- Estimate 87 − 38 by rounding each number to the nearest 10: ______
- Estimate 89 + 75 by rounding each number to the nearest 10: ______
- Estimate 30 − 73 by rounding each number to the nearest 10: ______