1. Joseph paints the wall. A bottle of paint can paint $$ 5 \mathrm{~m}^{2} $$ of wall. How many $$ \mathrm{m}^{2} $$ of wall can be painted with 3 bottles of paint. a. What is a number sentence? b. Draw a diagram to express the multiplication.

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**Step 1: Identify the Information**

- Each bottle of paint covers $$\,5\,\mathrm{m}^2$$ of wall.
- Joseph has 3 bottles of paint.

**Step 2: Write the Number Sentence**

To find the total area painted, multiply the number of bottles by the area each bottle can cover:

$$
3 \times 5 = 15
$$

Thus, 15 $$\mathrm{m}^2$$ of wall can be painted.

**Step 3: Draw a Diagram to Express the Multiplication**

A visual diagram using rows or groups can represent the multiplication. Here is one way to represent it:

- Represent each bottle as a group that covers 5 squares (each square symbolizes $$1\,\mathrm{m}^2$$).

```
Bottle 1: □ □ □ □ □
Bottle 2: □ □ □ □ □
Bottle 3: □ □ □ □ □
```

Each row shows 5 squares and there are 3 rows for 3 bottles. Counting all squares gives:

$$
5 + 5 + 5 = 15
$$

This diagram illustrates that 3 groups of 5 $$\mathrm{m}^2$$ each result in 15 $$\mathrm{m}^2$$ of wall being painted.
**Number Sentence:** 3 bottles × 5 m² per bottle = 15 m² **Diagram:** 3 groups of 5 squares each, totaling 15 squares.

1. Joseph paints the wall. A bottle of paint can paint \( 5 \mathrm{~m}^{2} \) of wall. How many \( \mathrm{m}^{2} \) of wall can be painted with 3 bottles of paint. a. What is a number sentence? b. Draw a diagram to express the multiplication.

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