Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 77 by rounding each number to the nearest 10: ______
- Estimate 64 − 79 by rounding each number to the nearest 10: ______
- Estimate 75 + 38 by rounding each number to the nearest 10: ______
- Estimate 22 − 49 by rounding each number to the nearest 10: ______
- Estimate 26 + 63 by rounding each number to the nearest 10: ______
- Estimate 67 + 77 by rounding each number to the nearest 10: ______
- Estimate 73 − 70 by rounding each number to the nearest 10: ______
- Estimate 28 − 31 by rounding each number to the nearest 10: ______
- Estimate 65 − 83 by rounding each number to the nearest 10: ______
- Estimate 55 + 89 by rounding each number to the nearest 10: ______
- Estimate 48 − 42 by rounding each number to the nearest 10: ______
- Estimate 82 − 75 by rounding each number to the nearest 10: ______
- Estimate 24 + 32 by rounding each number to the nearest 10: ______
- Estimate 74 − 54 by rounding each number to the nearest 10: ______
- Estimate 66 − 85 by rounding each number to the nearest 10: ______
- Estimate 74 + 52 by rounding each number to the nearest 10: ______
- Estimate 67 − 83 by rounding each number to the nearest 10: ______
- Estimate 47 − 80 by rounding each number to the nearest 10: ______
- Estimate 82 − 89 by rounding each number to the nearest 10: ______
- Estimate 42 − 48 by rounding each number to the nearest 10: ______