Section 8 Category 43

Example 1 - mental math

The number of students in the karate team are 60 - 24 = 36. The ratio of 24:36 = 2:3.


Example 4 - mental math

Since 9 centimeters is 45 times of 0.2 centimeters, the corresponding feet will also be 45 times: 10x45 = 450.