Question

3. Calcule as somas algébricas:
a)-7-3-8+4=
b) 2-9-17-8-25 =
C) 18-9-2-7-1 =
d) -57-30-2-41-9-3=
e) 42-35-10-15-16 =
f )3-9-7-6-5-8-10 =
g) 5-18 +37-20-45-6-50 =
h) 8+2-9+4-5-1-5-8=
i) 100 - 200 - 500 - 50 =
j)137-24-12-37 +51 - 51 =​

Answer 1

Resposta:

a)-7-3-8+4

-13+4

-9

b)2-9-17-8-25

2-59

-57

c)18-9-2-7-1

18-9

-1

d)-57-30-2-41-9-3

-(57+30+2+41+9+3)

-(60+30+2+41+9)

-(90+2+41+9)

-(90+2+50)

-(140+2)

-142

e)42-35-10-15-16

42-76

-34

f)3-9-7-6-5-8-10

3-45

-42

g)5-18+37-20-45-6-50

42-139

-97

h)8+2-9+4-5-1-5-8

6-20

-14

i)100-200-500-50

100-750

-650

j)137-24-12-37+51-51

137-73

64

Bons estudos!!!