Question

Here are six number cards

-7 -5 -3 3 1 -1
arrange the cards into three pairs with the same total

Answer 1

-5+1= -4
-7+ -3 = -4
-1+ -3= -4

Answer 2

-7 + 3 = -4

-5 + 1 = -4

-3 + (-1) = -4

Explanation: