Question

1) EFETUE AS SUBTRAÇÕES. A) (-10)-(+3) b) (-15)-(-8)
c) 0-(-25) d) (+5)-(+9) e) (+17)-0 f) (+24)-(-12)
2) COPIE AS EXPRESSÕES E CALCULE O VALOR DE CADA UMA
A) (-5)-(-3)-(+7)+(-4)
B) (+1)+(+6)-(-2)+(-9)
C) (-4)-(-3)+(+2)-(+1)+(-8)
D) -5+2-(-4)+2-(+5)+2

Answer 1

A) (-10)-(+3)
-10-3
-13

b) (-15)-(-8)
-15+8
-7

c) 0-(-25)
0+25
25

d) (+5)-(+9)
5-9
-4

e) (+17)-0
17-0
17

f) (+24)-(-12)
24+12
36

A) (-5)-(-3)-(+7)+(-4)
-5+3-7-4
-2-11
-13

B) (+1)+(+6)-(-2)+(-9)
1+6+2-9
9-9
0

C) (-4)-(-3)+(+2)-(+1)+(-8)
-4+3+2-1-8
-13+5
-8

D) -5+2-(-4)+2-(+5)+2
-5+2+4+2-5+2
-10+10
0

Answer 2

1. a) (-10)-(+3) = -13
b) (-15)-(-8) = -7
c) 0-(-25)= 25
d)(+5)-(+9)= -4
e) (+17)-0= 17
f)(+24)-(-12) =36

2. a) (-5)-(-3)-(+7)+(-4) = -5+3-7-4= -13
b) (+1)+(+6)-(-2)+(-9) = 1+6+2-9= 0
c)(-4)-(-3)+(+2)-(+1)+(-8)= -4+3+2-1-8= 5 - 13 = -8
d)-5+2-(-4)+2-(+5)+2= -5+2+4+2-5+2= 10 - 10 = 0