Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 − 52 by rounding each number to the nearest 10: ______
- Estimate 28 + 59 by rounding each number to the nearest 10: ______
- Estimate 52 − 55 by rounding each number to the nearest 10: ______
- Estimate 38 − 53 by rounding each number to the nearest 10: ______
- Estimate 72 + 55 by rounding each number to the nearest 10: ______
- Estimate 42 + 31 by rounding each number to the nearest 10: ______
- Estimate 87 + 30 by rounding each number to the nearest 10: ______
- Estimate 47 + 67 by rounding each number to the nearest 10: ______
- Estimate 48 − 66 by rounding each number to the nearest 10: ______
- Estimate 35 − 53 by rounding each number to the nearest 10: ______
- Estimate 30 + 46 by rounding each number to the nearest 10: ______
- Estimate 26 + 53 by rounding each number to the nearest 10: ______
- Estimate 36 + 60 by rounding each number to the nearest 10: ______
- Estimate 27 − 86 by rounding each number to the nearest 10: ______
- Estimate 21 − 24 by rounding each number to the nearest 10: ______
- Estimate 47 − 74 by rounding each number to the nearest 10: ______
- Estimate 51 − 63 by rounding each number to the nearest 10: ______
- Estimate 81 + 35 by rounding each number to the nearest 10: ______
- Estimate 25 + 45 by rounding each number to the nearest 10: ______
- Estimate 46 − 21 by rounding each number to the nearest 10: ______