Question

Gente me ajuda pfv...

Answer 1

2)
a) (+9)+(+5)
+9+5=+14
b) (+3)+(-4)
+3-4=-1
c) (-8)+(+6)
-8+6=-2
d) (+5)+(-9)
+5-9=-4
e) (-6)+(+2)
-6+2=-4
f) (+9)+(-1)
+9-1=+8
g) (+8)+(-3)
+8-3=+5
h) (+12)+(-3)
+12-3=+9
i) (-7)+(+15)
-7+15=+8
j) (-18)+(+8)
-18+8=-10
3)
a) (+7)+(-7)
+7-7=0
b) (-2)+(+2)
-2+2=0
c) (+1)+(-1)
+1-1=0
d) (-10)+(+10)
-10+10=0
e) (+23)+(-23)
+23-23=0
f) (-37)+(+37)
-37+37=0

Answer 2

Então vamos la

9 - 5 = 4
3 - 4 = -1
-8 + 6 = -2
5 - 9 = -4
-6 + 2 = -4
9 - 1 = 8
8 - 3 = 5
12 - 3 = 9
-7 + 15 = 8
-18 + 8 = -10
7 - 7 = 0
-2 + 2 = 0
1 - 1 = 0
-10 + 10 = 0
23 - 23 = 0
-37 + 37 = 0

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