If there are sixty-five dolphins in the ocean, and three times that number joins in from a river which has its mouth at the ocean, calculate the total number of dolphins in the ocean.
When three times the number of dolphins in the ocean joins in from a river, the number of dolphins in the ocean increases by 3 *65 = <T>multiply(3, 65)=195
The total number of dolphins in the ocean increases to 195+65 = <T>add(195, 65)=260
