On 7 Mondays, it rained 7 x 1.5 = 10.5 centimeters.
On 9 Tuesdays, it rained 9 x 2.5 = 22.5 centimeters.
The difference in rainfall between Tuesdays and Mondays is 22.5 - 10.5 = 12 centimeters.
Therefore, it rained 12 more centimeters on Tuesdays than Mondays.
#### 12
The answer is: 12
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
On each of 7 Mondays, it rained 1.5 centimeters. On each of 9 Tuesdays it rained 2.5 centimeters. How many more centimeters did it rain on Tuesdays than Mondays?

### Answer:
