Tim sleeps 6 hours per day for 5 days a week and 10 hours a day for the other 2.  How much total sleep does he get?
He gets 6*5=<T>multiply(6, 5)=30 hours of sleep on 5 days
He gets 10*2=<T>multiply(10, 2)=20 hours the other days
So he got 30+20=<T>add(30, 20)=50 hours
