Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 59 + 53 by rounding each number to the nearest 10: ______
- Estimate 45 + 33 by rounding each number to the nearest 10: ______
- Estimate 63 − 55 by rounding each number to the nearest 10: ______
- Estimate 75 + 78 by rounding each number to the nearest 10: ______
- Estimate 78 − 72 by rounding each number to the nearest 10: ______
- Estimate 76 + 35 by rounding each number to the nearest 10: ______
- Estimate 31 + 68 by rounding each number to the nearest 10: ______
- Estimate 80 − 24 by rounding each number to the nearest 10: ______
- Estimate 50 − 84 by rounding each number to the nearest 10: ______
- Estimate 55 − 43 by rounding each number to the nearest 10: ______
- Estimate 59 − 89 by rounding each number to the nearest 10: ______
- Estimate 28 + 48 by rounding each number to the nearest 10: ______
- Estimate 53 + 25 by rounding each number to the nearest 10: ______
- Estimate 76 − 41 by rounding each number to the nearest 10: ______
- Estimate 85 − 26 by rounding each number to the nearest 10: ______
- Estimate 52 − 61 by rounding each number to the nearest 10: ______
- Estimate 31 − 46 by rounding each number to the nearest 10: ______
- Estimate 46 − 79 by rounding each number to the nearest 10: ______
- Estimate 64 − 23 by rounding each number to the nearest 10: ______
- Estimate 22 − 89 by rounding each number to the nearest 10: ______