Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 + 68 by rounding each number to the nearest 10: ______
- Estimate 85 − 70 by rounding each number to the nearest 10: ______
- Estimate 49 + 44 by rounding each number to the nearest 10: ______
- Estimate 73 − 83 by rounding each number to the nearest 10: ______
- Estimate 38 − 35 by rounding each number to the nearest 10: ______
- Estimate 22 − 23 by rounding each number to the nearest 10: ______
- Estimate 63 − 44 by rounding each number to the nearest 10: ______
- Estimate 26 + 25 by rounding each number to the nearest 10: ______
- Estimate 35 + 37 by rounding each number to the nearest 10: ______
- Estimate 22 + 51 by rounding each number to the nearest 10: ______
- Estimate 76 + 70 by rounding each number to the nearest 10: ______
- Estimate 70 − 67 by rounding each number to the nearest 10: ______
- Estimate 61 − 44 by rounding each number to the nearest 10: ______
- Estimate 66 + 34 by rounding each number to the nearest 10: ______
- Estimate 62 − 23 by rounding each number to the nearest 10: ______
- Estimate 23 − 29 by rounding each number to the nearest 10: ______
- Estimate 31 + 23 by rounding each number to the nearest 10: ______
- Estimate 63 + 78 by rounding each number to the nearest 10: ______
- Estimate 67 − 24 by rounding each number to the nearest 10: ______
- Estimate 35 + 25 by rounding each number to the nearest 10: ______