Question

Hannah has a grid a squares that has 12 rows with 15 squares in each row.She colors 5 rows of 8 squares in the middle of the grid blue.She colors the rest of the squares red.How many squares does Hannah color red?

Answer 1

Hannah colors 140 squares red.

12*15=180

5*8=40

180-40=

140

Answer 2

140

Explanation:

Each row has a total count of 15 squares

There are a total of 12 rows thus total squares is

12

×

15

=

180

Colored blue

→

5 rows of 8

→

5

×

8

=

40

Rest are red: Total count - blue

→

180

−

40

=

140