Questão 3 A)(+5)-(+3)= E)(-6).(-7)= 1)2-(-3) (+6)= Solva B)(+15)+(-5)=-) F)(-40)+(-5)=40 J)500:(-20)= C)(-8).(+4)= -2D)(-35)÷(+7)= G)(49).(-3)= H)(+51)÷(-3)=
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Explicação passo-a-passo:
A)(+5)-(+3)=
5 - 3
2
B)(+15)+(-5)=
15 - 5
10
C)(-8).(+4)=
- 32
D)(-35)÷(+7)=
- 5
E)(-6).(-7)=
42
F)(-40)+(-5)=
- 40 - 5
- 45
G)(49).(-3)=
- 147
H)(+51)÷(-3)=
- 17
J)500:(-20)=
- 25