For parts (a), (b), and (c), try drawing a diagram with + and − symbols if you are having difficulty.
Parts (d) and (e) are similar to (a) - (c).
Remember that the product of two negative integers is positive.
If you had 5 groups of 16 negatives, how many negatives would you have?
What would you need to multiply by 5 to get −20?
If you had 12 negatives and you divided them into groups with one negative in each, how many groups would you have?