Mike buys 6 rose bushes at 75 dollars each, 2 of them are for his friend and the rest are for him.  He also buys 2 tiger tooth aloes for 100 dollars each.  How much money did he spend on plants for himself?
He bought 6-2=<T>subtract(6, 2)=4 rose bushes for himself
The rose bushes for himself cost 4*$75=$<T>multiply(4, 75)=300
He also spent 2*$100=$<T>multiply(2, 100)=200 on aloes.
He spent a total of $200+$300=$<T>add(200, 300)=500
