Nigel won $45 but gave some away. His mother gave him $80 more. If now Nigel has $10 more than twice the amount he originally had, how much money did he give away?
Twice the amount Nigel originally had is 2 * 45 = <T>multiply(2, 45)=90 dollars
Now, Nigel has 10 dollars more, meaning that he has 10 + 90 = <T>add(10, 90)=100 dollars
Before his mother gave him 80 dollars, he had been left with 100 - 80 = <T>subtract(100, 80)=20 dollars
This means that Nigel gave away 45 - 20 = <T>subtract(45, 20)=25 dollars
