QuestionFact family includes $3+9=12$. Find the other three facts and draw models for them. Select from options A-H.

Studdy Solution
For part b, we need to draw number line models for each of the number facts in part a.1. For the fact $3+9=12$, start at0, make a jump of3 to reach3, then make a jump of9 to reach12.
2. For the fact $9+3=12$, start at0, make a jump of9 to reach9, then make a jump of3 to reach12.
3. For the fact $12-3=9$, start at12, make a jump of -3 (backwards) to reach9.
4. For the fact $12-9=3$, start at12, make a jump of -9 (backwards) to reach3.
The number fact that corresponds to the question mark in each graph is the fact that is represented by the jumps on the number line.