Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 − 65 by rounding each number to the nearest 10: ______
- Estimate 21 + 78 by rounding each number to the nearest 10: ______
- Estimate 24 − 74 by rounding each number to the nearest 10: ______
- Estimate 40 − 86 by rounding each number to the nearest 10: ______
- Estimate 48 − 42 by rounding each number to the nearest 10: ______
- Estimate 71 + 47 by rounding each number to the nearest 10: ______
- Estimate 40 − 36 by rounding each number to the nearest 10: ______
- Estimate 40 + 53 by rounding each number to the nearest 10: ______
- Estimate 38 − 54 by rounding each number to the nearest 10: ______
- Estimate 52 + 24 by rounding each number to the nearest 10: ______
- Estimate 52 + 26 by rounding each number to the nearest 10: ______
- Estimate 46 + 80 by rounding each number to the nearest 10: ______
- Estimate 40 + 56 by rounding each number to the nearest 10: ______
- Estimate 73 − 84 by rounding each number to the nearest 10: ______
- Estimate 48 − 48 by rounding each number to the nearest 10: ______
- Estimate 23 + 82 by rounding each number to the nearest 10: ______
- Estimate 73 − 77 by rounding each number to the nearest 10: ______
- Estimate 55 − 66 by rounding each number to the nearest 10: ______
- Estimate 46 − 42 by rounding each number to the nearest 10: ______
- Estimate 76 − 23 by rounding each number to the nearest 10: ______