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In this problem, Francisco and Juliana are playing with two 12-sided dice: a red one and a green one. The red die's points are negative, and the green die's points are positive.

Francisco rolls a 12 on the red die and a 9 on the green die. To calculate the total points, we follow these steps:

- The red die gives negative points, so the 12 becomes -12.
- The green die gives positive points, so the 9 remains +9.

Now, sum the two values:
\[
-12 + 9 = -3
\]

Thus, Francisco's total score is \(-3\), which matches the answer \(B. -3\).

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Would you like more details or have any questions? 

Here are 5 related questions:
1. What would Francisco's score be if he rolled a 6 on the red die and an 8 on the green die?
2. How would the score change if both dice gave positive points?
3. What are some real-life applications of this type of negative-positive point system?
4. How could you modify the rules to make the game more challenging?
5. If Francisco had rolled the same numbers but with the red die being positive and the green die negative, what would his score be?

**Tip:** Always check the sign of each component in a sum when dealing with positive and negative numbers!

Francisco y Juliana están jugando con dos dados de doce caras, uno rojo y uno verde. El juego consiste en lanzar los dos dados y sumar sus puntos, los puntos del dado rojo son negativos y los puntos del dado verde son positivos. Si Francisco lanza y obtiene 12 en el dado rojo y 9 en el dado verde, ¿cuántos puntos obtiene?

In this math problem, Francisco and Juliana play with two dice: a red one with negative points and a green one with positive points. Francisco rolls a 12 on the red die and a 9 on the green die. Learn how to calculate the final score using basic addition of positive and negative numbers. This is suitable for students in Grades 6-8.

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