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

### 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:
 Kuna mraba 10 x 15 = <<10*15=150>>150 katika gridi.
Mraba 4 x 6 = <<4*6=24>>24 wamechorwa kwa rangi nyekundu.
Kuna safu 2 + 2 = <<2+2=4>>4 ambazo zote ni bluu.
Hivyo, jumla ya mraba 4 x 15 = 60 wamechorwa kwa rangi ya bluu.
Hivyo, jumla ya mraba 24 + 60 = <<24+60=84>>84 wamechorwa kwa rangi nyekundu au bluu.
Hivyo, jumla ya mraba 150 - 84 = <<150-84=66>>66 wamechorwa kwa rangi ya kijani.