Question

Efetue as seguintes adições: a)(-6)+(+8) b)(+14)+(-5)+(+3). c)(+6)+(-10)+(+12)+(-4). D)(+27)+(+13)+(-28)+(-30)

Answer 1

a)(-6)+(+8)
-6+8=+2

b)(+14)+(-5)+(+3)
+14-5+3
+0+3=12

c)(+6)+(-10)+(+12)+(-4)
+6-10+12-4
+18-14=+4

D)(+27)+(+13)+(-28)+(-30)
+27+13-28-30
+40-58= -18