It takes 5 people to lift a car and twice as many people to lift a truck. How many people are needed to lift 6 cars and 3 trucks?
It takes 5 x 2 = <T>multiply(5, 2)=10 people to lift a truck.
5 x 6 = <T>multiply(5, 6)=30 people are needed to lift the cars.
10 x 3 = <T>multiply(10, 3)=30 people are needed to lift the trucks.
Altogether, 30 + 30 = <T>add(30, 30)=60 people are needed.
