Help i don't know what to do I will give brainiest

The sum will be whichever number has the greater value.

Step-by-step explanation:

Let's say you have (-2) + 4 = ?

The number with the greater value is 4.

So the sum of your answer would be a positive, since the greater number has a positive sign.

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.