Question

b) -81:(-9) -[-4 - (15 + 3)] =
31
-13
13
c) -128:(-6 + 8) + (+3 - 6+2).(-5 + 2) =
67
-61
-67
d) (-45 + 35 - 155):(-5) + (-9 + 1) =
41
-25
25
e) (-72 + 16 - 24):(-8) + (-2 + 7) =
15
-5
5​

Answer 1

Que quiere decir “:” ??