Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 68 − 31 by rounding each number to the nearest 10: ______
- Estimate 42 − 51 by rounding each number to the nearest 10: ______
- Estimate 55 + 31 by rounding each number to the nearest 10: ______
- Estimate 68 + 37 by rounding each number to the nearest 10: ______
- Estimate 42 − 21 by rounding each number to the nearest 10: ______
- Estimate 72 + 78 by rounding each number to the nearest 10: ______
- Estimate 53 + 40 by rounding each number to the nearest 10: ______
- Estimate 50 − 22 by rounding each number to the nearest 10: ______
- Estimate 75 + 45 by rounding each number to the nearest 10: ______
- Estimate 61 + 37 by rounding each number to the nearest 10: ______
- Estimate 80 − 37 by rounding each number to the nearest 10: ______
- Estimate 39 − 73 by rounding each number to the nearest 10: ______
- Estimate 23 − 42 by rounding each number to the nearest 10: ______
- Estimate 37 + 68 by rounding each number to the nearest 10: ______
- Estimate 50 + 82 by rounding each number to the nearest 10: ______
- Estimate 61 + 28 by rounding each number to the nearest 10: ______
- Estimate 43 − 46 by rounding each number to the nearest 10: ______
- Estimate 43 − 51 by rounding each number to the nearest 10: ______
- Estimate 62 + 31 by rounding each number to the nearest 10: ______
- Estimate 65 + 61 by rounding each number to the nearest 10: ______