Question

calcule no caderno

a)(+5)+(+20)
b)(+2)+(-12)
c)(-15)+(+9)
d)(-6)+(0)

Answer 1

a) 25
b) -10
c) -6
d)  -6

Answer 2

A) (+5)+(20)
+5+20
+25
B)(+2)+(-12)
+2-12
-10
C)(-15)+(+9)
-15+9
-6
D)(-6)+(0)
-6