Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 88 + 65 by rounding each number to the nearest 10: ______
- Estimate 78 + 65 by rounding each number to the nearest 10: ______
- Estimate 60 + 23 by rounding each number to the nearest 10: ______
- Estimate 84 + 51 by rounding each number to the nearest 10: ______
- Estimate 88 − 86 by rounding each number to the nearest 10: ______
- Estimate 88 + 38 by rounding each number to the nearest 10: ______
- Estimate 31 + 87 by rounding each number to the nearest 10: ______
- Estimate 47 + 45 by rounding each number to the nearest 10: ______
- Estimate 26 + 60 by rounding each number to the nearest 10: ______
- Estimate 27 + 38 by rounding each number to the nearest 10: ______
- Estimate 44 − 87 by rounding each number to the nearest 10: ______
- Estimate 45 − 34 by rounding each number to the nearest 10: ______
- Estimate 65 − 78 by rounding each number to the nearest 10: ______
- Estimate 83 + 57 by rounding each number to the nearest 10: ______
- Estimate 57 + 49 by rounding each number to the nearest 10: ______
- Estimate 44 + 28 by rounding each number to the nearest 10: ______
- Estimate 78 − 85 by rounding each number to the nearest 10: ______
- Estimate 44 + 77 by rounding each number to the nearest 10: ______
- Estimate 62 − 26 by rounding each number to the nearest 10: ______
- Estimate 72 + 82 by rounding each number to the nearest 10: ______