The cafe has 16 chefs and 16 waiters. If 6 chefs and 3 waiters drop out, how many chefs and waiters are left?
There are 16 chefs - 6 chefs = <T>subtract(16, 6)=10 chefs left.
There are 16 waiters - 3 waiters = <T>subtract(16, 3)=13 waiters left.
In total there are 10 chefs + 13 waiters = <T>add(10, 13)=23 chefs and waiters left.
