Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 + 23 by rounding each number to the nearest 10: ______
- Estimate 83 − 53 by rounding each number to the nearest 10: ______
- Estimate 46 − 46 by rounding each number to the nearest 10: ______
- Estimate 22 + 45 by rounding each number to the nearest 10: ______
- Estimate 70 − 60 by rounding each number to the nearest 10: ______
- Estimate 45 + 52 by rounding each number to the nearest 10: ______
- Estimate 22 − 45 by rounding each number to the nearest 10: ______
- Estimate 71 − 42 by rounding each number to the nearest 10: ______
- Estimate 28 − 62 by rounding each number to the nearest 10: ______
- Estimate 35 − 51 by rounding each number to the nearest 10: ______
- Estimate 52 + 85 by rounding each number to the nearest 10: ______
- Estimate 35 + 47 by rounding each number to the nearest 10: ______
- Estimate 60 + 37 by rounding each number to the nearest 10: ______
- Estimate 56 + 64 by rounding each number to the nearest 10: ______
- Estimate 33 + 31 by rounding each number to the nearest 10: ______
- Estimate 55 − 62 by rounding each number to the nearest 10: ______
- Estimate 22 + 33 by rounding each number to the nearest 10: ______
- Estimate 28 + 47 by rounding each number to the nearest 10: ______
- Estimate 50 + 87 by rounding each number to the nearest 10: ______
- Estimate 71 + 57 by rounding each number to the nearest 10: ______