Below is an instruction that describes a task. Write a response that appropriately completes the request in French. Please answer in French.

### Instruction:
 Marla has a grid of squares that has 10 rows and 15 squares in each row. She colors 4 rows of 6 squares in the middle of the grid with red. She colors all squares on the first 2 and last 2 rows with blue. Then she colors the rest with green. How many squares does Marla color green?


### Response:
 Il y a 10 x 15 = <<10*15=150>>150 carrés dans une grille.
4 x 6 = <<4*6=24>>24 carrés sont colorés en rouge.
Il y a 2 + 2 = <<2+2=4>>4 rangées qui sont toutes bleues.
Ainsi, un total de 4 x 15 = <<4*15=60>>60 carrés sont colorés en bleu.
24 + 60 = <<24+60=84>>84 carrés sont colorés en rouge ou en bleu.
Par conséquent, 150 - 84 = <<150-84=66>>66 carrés sont verts.