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jenifermerelles1
@jenifermerelles1
July 2022
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Responda as questões a seguir
A) +(+1500)-(-1000)+(-200)=
B)(-700)+(-500)-(+300)=
C)+(-600)-(+800)-(-70)=
D) (+600)-(-90)+(65)=
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claudelaneapaes
A) 2500-200= 2300
B) -1300-300= -1600
C) -1400+70= -1330
D) 600+90+65= 755
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Thanks 1
rafaelgdacruz
Primeira coisa: Retirar dos parenteses.
Para isso usar regra de sinal:
Sinais iguais = +
Senais diferentes = -
Então:
A) 1.500 +1.000 -200 = 2.300
B) -700 -500 -300 = -1.500
C) -600 -800 +70 = -1.330
D) 600 +90 +65 = 755
0 votes
Thanks 1
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B) -1300-300= -1600
C) -1400+70= -1330
D) 600+90+65= 755
Para isso usar regra de sinal:
Sinais iguais = +
Senais diferentes = -
Então:
A) 1.500 +1.000 -200 = 2.300
B) -700 -500 -300 = -1.500
C) -600 -800 +70 = -1.330
D) 600 +90 +65 = 755