Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 46 + 66 by rounding each number to the nearest 10: ______
- Estimate 75 − 55 by rounding each number to the nearest 10: ______
- Estimate 67 + 23 by rounding each number to the nearest 10: ______
- Estimate 82 + 48 by rounding each number to the nearest 10: ______
- Estimate 54 + 46 by rounding each number to the nearest 10: ______
- Estimate 73 + 66 by rounding each number to the nearest 10: ______
- Estimate 88 + 42 by rounding each number to the nearest 10: ______
- Estimate 31 + 51 by rounding each number to the nearest 10: ______
- Estimate 37 + 72 by rounding each number to the nearest 10: ______
- Estimate 54 − 27 by rounding each number to the nearest 10: ______
- Estimate 45 + 41 by rounding each number to the nearest 10: ______
- Estimate 72 − 83 by rounding each number to the nearest 10: ______
- Estimate 76 − 61 by rounding each number to the nearest 10: ______
- Estimate 42 + 28 by rounding each number to the nearest 10: ______
- Estimate 26 + 21 by rounding each number to the nearest 10: ______
- Estimate 62 + 36 by rounding each number to the nearest 10: ______
- Estimate 60 − 84 by rounding each number to the nearest 10: ______
- Estimate 68 − 66 by rounding each number to the nearest 10: ______
- Estimate 31 − 38 by rounding each number to the nearest 10: ______
- Estimate 42 − 45 by rounding each number to the nearest 10: ______