Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 40 + 30 by rounding each number to the nearest 10: ______
- Estimate 40 + 85 by rounding each number to the nearest 10: ______
- Estimate 50 − 42 by rounding each number to the nearest 10: ______
- Estimate 44 − 42 by rounding each number to the nearest 10: ______
- Estimate 48 + 49 by rounding each number to the nearest 10: ______
- Estimate 29 + 77 by rounding each number to the nearest 10: ______
- Estimate 30 − 40 by rounding each number to the nearest 10: ______
- Estimate 35 − 76 by rounding each number to the nearest 10: ______
- Estimate 49 − 25 by rounding each number to the nearest 10: ______
- Estimate 55 − 82 by rounding each number to the nearest 10: ______
- Estimate 76 + 66 by rounding each number to the nearest 10: ______
- Estimate 25 − 80 by rounding each number to the nearest 10: ______
- Estimate 85 + 70 by rounding each number to the nearest 10: ______
- Estimate 68 + 25 by rounding each number to the nearest 10: ______
- Estimate 23 + 66 by rounding each number to the nearest 10: ______
- Estimate 41 + 23 by rounding each number to the nearest 10: ______
- Estimate 85 − 44 by rounding each number to the nearest 10: ______
- Estimate 76 + 27 by rounding each number to the nearest 10: ______
- Estimate 55 − 72 by rounding each number to the nearest 10: ______
- Estimate 86 + 40 by rounding each number to the nearest 10: ______