Question

a) 3 + 2 – 4 = *

b) 7 – 3 + 5 = *

c) – 3 + 5 – 2 – 9 =

d) – 5 + 4 – 2 – 7 + 3 = 

e) 23 – 45 – 12 + 67 = 

f) ( + 10 ).( – 12 ).( + 1 ).( – 3 ).( + 2 ) = 

g) ( – 3 ).( - 2 ).( – 10).( + 4 ) = 

h) ( + 3 ).( + 3 ).( - 3 ).( - 3 ) = 

i) ( - 1 ) . ( -12 ) . ( + 57 ) =

j) ( – 12 ) : ( – 3 ) = 

k) ( – 48 ) : ( + 6 ) = 

l) ( + 32 ) : ( +16 ) = 

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Answer 1

Explicação passo-a-passo:

a) 3 + 2 – 4 = 1

b) 7 – 3 + 5 = 9

c) – 3 + 5 – 2 – 9 = -13

d) – 5 + 4 – 2 – 7 + 3 = -7

e) 23 – 45 – 12 + 67 = 31

f) ( + 10 ).( – 12 ).( + 1 ).( – 3 ).( + 2 ) = 720

g) ( – 3 ).( - 2 ).( – 10).( + 4 ) = -240

h) ( + 3 ).( + 3 ).( - 3 ).( - 3 ) = 81

i) ( - 1 ) . ( -12 ) . ( + 57 ) = 684

j) ( – 12 ) : ( – 3 ) = 4

k) ( – 48 ) : ( + 6 ) = -8

l) ( + 32 ) : ( +16 ) = 2