Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 + 45 by rounding each number to the nearest 10: ______
- Estimate 39 + 63 by rounding each number to the nearest 10: ______
- Estimate 87 − 47 by rounding each number to the nearest 10: ______
- Estimate 21 − 39 by rounding each number to the nearest 10: ______
- Estimate 22 − 75 by rounding each number to the nearest 10: ______
- Estimate 58 − 55 by rounding each number to the nearest 10: ______
- Estimate 50 + 87 by rounding each number to the nearest 10: ______
- Estimate 68 − 22 by rounding each number to the nearest 10: ______
- Estimate 66 − 66 by rounding each number to the nearest 10: ______
- Estimate 75 + 36 by rounding each number to the nearest 10: ______
- Estimate 48 − 49 by rounding each number to the nearest 10: ______
- Estimate 42 + 25 by rounding each number to the nearest 10: ______
- Estimate 74 + 45 by rounding each number to the nearest 10: ______
- Estimate 62 + 23 by rounding each number to the nearest 10: ______
- Estimate 60 − 67 by rounding each number to the nearest 10: ______
- Estimate 41 + 48 by rounding each number to the nearest 10: ______
- Estimate 53 − 81 by rounding each number to the nearest 10: ______
- Estimate 80 − 59 by rounding each number to the nearest 10: ______
- Estimate 78 − 64 by rounding each number to the nearest 10: ______
- Estimate 59 − 81 by rounding each number to the nearest 10: ______