Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 + 32 by rounding each number to the nearest 10: ______
- Estimate 78 − 22 by rounding each number to the nearest 10: ______
- Estimate 80 − 40 by rounding each number to the nearest 10: ______
- Estimate 25 − 25 by rounding each number to the nearest 10: ______
- Estimate 75 − 81 by rounding each number to the nearest 10: ______
- Estimate 32 + 55 by rounding each number to the nearest 10: ______
- Estimate 62 + 23 by rounding each number to the nearest 10: ______
- Estimate 22 − 48 by rounding each number to the nearest 10: ______
- Estimate 71 − 28 by rounding each number to the nearest 10: ______
- Estimate 35 + 77 by rounding each number to the nearest 10: ______
- Estimate 35 + 22 by rounding each number to the nearest 10: ______
- Estimate 47 − 49 by rounding each number to the nearest 10: ______
- Estimate 80 − 68 by rounding each number to the nearest 10: ______
- Estimate 75 − 52 by rounding each number to the nearest 10: ______
- Estimate 49 + 35 by rounding each number to the nearest 10: ______
- Estimate 28 − 22 by rounding each number to the nearest 10: ______
- Estimate 40 − 74 by rounding each number to the nearest 10: ______
- Estimate 73 − 67 by rounding each number to the nearest 10: ______
- Estimate 32 + 84 by rounding each number to the nearest 10: ______
- Estimate 45 + 38 by rounding each number to the nearest 10: ______