a) Here are some L-shapes made from squares. Fill in the table to show how many squares make each shape.

Shape | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
Squares |
b) How many squares do you need to make L-shape 4?
Use the clues to find the mystery number.
It is bigger than 30.
It is less than 45.
It is an odd number.
It is a multiple of 5.