Yanni has $0.85. His mother gave him $0.40 in addition. While going to the mall, Yanni found $0.50. He bought a toy that cost $1.6. How much money in cents did Yanni have left?
Yanni's mother gave him $0.40 in addition to $0.85 for a total of $0.40+$0.85 = $<T>add(0.4, 0.85)=1.25.
Yanni found $0.50 so he had a total of $1.25 + $0.50 = $<T>add(1.25, 0.5)=1.75
Therefore, Yanni had $1.75 - $1.6 = $<T>subtract(1.75, 1.6)=0.1499999999999999 left
100 cents make $1 so $0.15 is 100*0.15 = <T>multiply(100, 0.15)=15.0 cents
