Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 26 + 37 by rounding each number to the nearest 10: ______
- Estimate 85 − 46 by rounding each number to the nearest 10: ______
- Estimate 64 + 24 by rounding each number to the nearest 10: ______
- Estimate 42 + 56 by rounding each number to the nearest 10: ______
- Estimate 48 − 76 by rounding each number to the nearest 10: ______
- Estimate 70 + 45 by rounding each number to the nearest 10: ______
- Estimate 85 + 68 by rounding each number to the nearest 10: ______
- Estimate 73 + 80 by rounding each number to the nearest 10: ______
- Estimate 38 + 89 by rounding each number to the nearest 10: ______
- Estimate 82 − 34 by rounding each number to the nearest 10: ______
- Estimate 30 + 49 by rounding each number to the nearest 10: ______
- Estimate 79 + 26 by rounding each number to the nearest 10: ______
- Estimate 67 + 27 by rounding each number to the nearest 10: ______
- Estimate 38 + 54 by rounding each number to the nearest 10: ______
- Estimate 21 + 28 by rounding each number to the nearest 10: ______
- Estimate 75 − 85 by rounding each number to the nearest 10: ______
- Estimate 37 − 21 by rounding each number to the nearest 10: ______
- Estimate 45 − 81 by rounding each number to the nearest 10: ______
- Estimate 80 − 44 by rounding each number to the nearest 10: ______
- Estimate 44 + 80 by rounding each number to the nearest 10: ______