Question

-17+13+12-10-13-9+21

Answer 1

Answer:

-17+13+12-10-13-9+21) = - 3

Answer 2

= -17 + 13 = -4

= -4 + 12 = -8

= -8 - 10 = -18

= -18 - 13 = -31

= -31 - 9 = -40

= -40 + 21 = -19

So, -19 is the answer