If their are 32 kids and their are 8 slices in a pizza then just divide 32 by 8 and you get 4. 4 pizzas for each student to get 1 slice each.
Well for two positive numbers subtracted to equal a negative number, the first number must have a value that is less than the second number. (Ex. 3-4= -1) In this case, you can conclude that x is less than y! (x<y)