Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 75 + 35 by rounding each number to the nearest 10: ______
- Estimate 62 + 25 by rounding each number to the nearest 10: ______
- Estimate 64 − 88 by rounding each number to the nearest 10: ______
- Estimate 81 − 43 by rounding each number to the nearest 10: ______
- Estimate 52 + 61 by rounding each number to the nearest 10: ______
- Estimate 52 + 69 by rounding each number to the nearest 10: ______
- Estimate 28 − 46 by rounding each number to the nearest 10: ______
- Estimate 85 − 62 by rounding each number to the nearest 10: ______
- Estimate 82 − 66 by rounding each number to the nearest 10: ______
- Estimate 68 + 46 by rounding each number to the nearest 10: ______
- Estimate 34 − 76 by rounding each number to the nearest 10: ______
- Estimate 41 − 31 by rounding each number to the nearest 10: ______
- Estimate 51 + 83 by rounding each number to the nearest 10: ______
- Estimate 60 + 67 by rounding each number to the nearest 10: ______
- Estimate 61 − 86 by rounding each number to the nearest 10: ______
- Estimate 88 − 53 by rounding each number to the nearest 10: ______
- Estimate 31 + 78 by rounding each number to the nearest 10: ______
- Estimate 77 + 81 by rounding each number to the nearest 10: ______
- Estimate 66 − 44 by rounding each number to the nearest 10: ______
- Estimate 66 + 88 by rounding each number to the nearest 10: ______