Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 32 − 72 by rounding each number to the nearest 10: ______
- Estimate 82 + 76 by rounding each number to the nearest 10: ______
- Estimate 22 − 33 by rounding each number to the nearest 10: ______
- Estimate 26 + 41 by rounding each number to the nearest 10: ______
- Estimate 35 + 57 by rounding each number to the nearest 10: ______
- Estimate 21 − 32 by rounding each number to the nearest 10: ______
- Estimate 87 + 67 by rounding each number to the nearest 10: ______
- Estimate 35 + 23 by rounding each number to the nearest 10: ______
- Estimate 57 + 86 by rounding each number to the nearest 10: ______
- Estimate 77 + 24 by rounding each number to the nearest 10: ______
- Estimate 77 + 87 by rounding each number to the nearest 10: ______
- Estimate 53 − 81 by rounding each number to the nearest 10: ______
- Estimate 63 + 44 by rounding each number to the nearest 10: ______
- Estimate 46 − 75 by rounding each number to the nearest 10: ______
- Estimate 49 − 69 by rounding each number to the nearest 10: ______
- Estimate 23 + 83 by rounding each number to the nearest 10: ______
- Estimate 61 + 74 by rounding each number to the nearest 10: ______
- Estimate 31 − 47 by rounding each number to the nearest 10: ______
- Estimate 66 − 36 by rounding each number to the nearest 10: ______
- Estimate 74 + 84 by rounding each number to the nearest 10: ______