Question

Here are 6 number cards.

-7, -5, -3, 3, 2 ,1, -1
arange the cards into 3 pairs with the same total

Answer 1

The total is -4.

Explanation:

Pair 1: -7 + 3 = -4

Pair 2: -5 + 1 = -4

Pair 3: -3 + (-1) = -4