Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 − 55 by rounding each number to the nearest 10: ______
- Estimate 75 + 72 by rounding each number to the nearest 10: ______
- Estimate 39 − 66 by rounding each number to the nearest 10: ______
- Estimate 73 − 66 by rounding each number to the nearest 10: ______
- Estimate 48 − 65 by rounding each number to the nearest 10: ______
- Estimate 74 − 78 by rounding each number to the nearest 10: ______
- Estimate 34 − 44 by rounding each number to the nearest 10: ______
- Estimate 74 + 42 by rounding each number to the nearest 10: ______
- Estimate 27 + 36 by rounding each number to the nearest 10: ______
- Estimate 28 − 78 by rounding each number to the nearest 10: ______
- Estimate 21 − 60 by rounding each number to the nearest 10: ______
- Estimate 32 + 42 by rounding each number to the nearest 10: ______
- Estimate 78 + 68 by rounding each number to the nearest 10: ______
- Estimate 87 − 27 by rounding each number to the nearest 10: ______
- Estimate 62 + 53 by rounding each number to the nearest 10: ______
- Estimate 68 + 37 by rounding each number to the nearest 10: ______
- Estimate 75 − 73 by rounding each number to the nearest 10: ______
- Estimate 64 − 60 by rounding each number to the nearest 10: ______
- Estimate 69 − 45 by rounding each number to the nearest 10: ______
- Estimate 55 + 60 by rounding each number to the nearest 10: ______