Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 + 49 by rounding each number to the nearest 10: ______
- Estimate 71 + 57 by rounding each number to the nearest 10: ______
- Estimate 84 + 77 by rounding each number to the nearest 10: ______
- Estimate 58 + 83 by rounding each number to the nearest 10: ______
- Estimate 27 − 78 by rounding each number to the nearest 10: ______
- Estimate 32 − 67 by rounding each number to the nearest 10: ______
- Estimate 47 + 41 by rounding each number to the nearest 10: ______
- Estimate 73 + 36 by rounding each number to the nearest 10: ______
- Estimate 66 − 58 by rounding each number to the nearest 10: ______
- Estimate 67 − 32 by rounding each number to the nearest 10: ______
- Estimate 54 − 44 by rounding each number to the nearest 10: ______
- Estimate 49 − 45 by rounding each number to the nearest 10: ______
- Estimate 53 − 78 by rounding each number to the nearest 10: ______
- Estimate 22 − 47 by rounding each number to the nearest 10: ______
- Estimate 67 + 42 by rounding each number to the nearest 10: ______
- Estimate 51 − 78 by rounding each number to the nearest 10: ______
- Estimate 77 − 54 by rounding each number to the nearest 10: ______
- Estimate 86 − 28 by rounding each number to the nearest 10: ______
- Estimate 88 + 61 by rounding each number to the nearest 10: ______
- Estimate 55 + 82 by rounding each number to the nearest 10: ______