Question

Cálculos com Débitos e Créditos
Efetue:
-13+7-9+5-13

-20+10-10+20+14-13-1

-8-10+17-3+4-7+8-1

-6-7-13-26+54-2

Me ajudem por favor!!

Answer 1

-13-7-9+5-13= -37

-20+10-10+20+14-13=0

-8-10+17-3+4-7+8-1=0

-6-7-13-26+54-2=0