Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 30 + 89 by rounding each number to the nearest 10: ______
- Estimate 56 − 75 by rounding each number to the nearest 10: ______
- Estimate 55 + 60 by rounding each number to the nearest 10: ______
- Estimate 47 + 44 by rounding each number to the nearest 10: ______
- Estimate 54 + 54 by rounding each number to the nearest 10: ______
- Estimate 24 − 82 by rounding each number to the nearest 10: ______
- Estimate 60 − 82 by rounding each number to the nearest 10: ______
- Estimate 77 − 64 by rounding each number to the nearest 10: ______
- Estimate 76 − 82 by rounding each number to the nearest 10: ______
- Estimate 80 + 53 by rounding each number to the nearest 10: ______
- Estimate 62 + 56 by rounding each number to the nearest 10: ______
- Estimate 82 − 34 by rounding each number to the nearest 10: ______
- Estimate 45 − 64 by rounding each number to the nearest 10: ______
- Estimate 42 − 51 by rounding each number to the nearest 10: ______
- Estimate 42 − 80 by rounding each number to the nearest 10: ______
- Estimate 53 + 50 by rounding each number to the nearest 10: ______
- Estimate 67 + 58 by rounding each number to the nearest 10: ______
- Estimate 39 + 28 by rounding each number to the nearest 10: ______
- Estimate 31 − 56 by rounding each number to the nearest 10: ______
- Estimate 86 + 80 by rounding each number to the nearest 10: ______