## Garden Beds

**Work Time**

# Garden Beds

A garden nursery sells square tiles for making borders around groups of plants (planting beds). The border tiles go *only* on the outside of *all* the plants—no tiles go *between* the plants. In the diagram, the square tiles are represented by tan squares and each plant is represented by 1 green square.

- How many square tiles are needed for 1 row of 100 plants?
- Write an algebraic expression that represents the number of square tiles needed for any number of plants planted in a single row.
- Find how many square tiles are needed for the following planting beds:
- 2 rows of 50 plants
- 4 rows of 25 plants
- 5 rows of 20 plants
- 10 rows of 10 plants

- Use a double number line or look at the relationship between the number of plants and the number of square tiles.