Answer:
1. 3 and 0
2. -3 and -2
Explanation:
1. The greatest product is the biggest you can get from adding 2 of the cards, positive numbers are bigger than negatives and so the most you can get is 3.
2. The least product is the smallest number you can get from adding 2 cards together and when you add two negative cards together you get a bigger negative (-5).