Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 65 − 26 by rounding each number to the nearest 10: ______
- Estimate 72 + 39 by rounding each number to the nearest 10: ______
- Estimate 48 + 56 by rounding each number to the nearest 10: ______
- Estimate 66 − 22 by rounding each number to the nearest 10: ______
- Estimate 87 + 60 by rounding each number to the nearest 10: ______
- Estimate 35 − 62 by rounding each number to the nearest 10: ______
- Estimate 60 − 51 by rounding each number to the nearest 10: ______
- Estimate 84 − 53 by rounding each number to the nearest 10: ______
- Estimate 21 + 52 by rounding each number to the nearest 10: ______
- Estimate 86 + 73 by rounding each number to the nearest 10: ______
- Estimate 29 − 44 by rounding each number to the nearest 10: ______
- Estimate 35 + 45 by rounding each number to the nearest 10: ______
- Estimate 78 − 39 by rounding each number to the nearest 10: ______
- Estimate 56 − 69 by rounding each number to the nearest 10: ______
- Estimate 29 − 53 by rounding each number to the nearest 10: ______
- Estimate 78 − 59 by rounding each number to the nearest 10: ______
- Estimate 31 + 42 by rounding each number to the nearest 10: ______
- Estimate 34 − 53 by rounding each number to the nearest 10: ______
- Estimate 47 − 89 by rounding each number to the nearest 10: ______
- Estimate 46 + 78 by rounding each number to the nearest 10: ______