a) 21 : 3 – 4 . ( - 3 )
b) 32 : ( -5 – 3 ) – ( + 14 )
c) ( -6 ) . ( + 5 ) – ( + 8 ) : ( - 4 ) d) ( -9 ) : ( -9 ) + ( -6 ) . ( -1 ) . ( + 8 )
e) ( - 6 )2 – ( + 5 )3
f) ( + 5 ) . ( - 3 ) + ( - 4 )0 – ( - 1 )12
Respostas
respondido por:
1
a) 21 : 3 – 4 . ( - 3 )= 19
21:3= 7
-4.-3= + 12
7+12=19
b) 32 : ( -5 – 3 ) – ( + 14 )= -18
32 : ( -5 – 3 )= 32: (-8)= -4
– ( + 14 )= -14
-4-14= –18
c) ( -6 ) . ( + 5 ) – ( + 8 ) : ( - 4 ) = -2
( -6 ) . ( + 5 )= -30
( + 8 ) : ( - 4 )= -2
-30-2= -32
d) ( -9 ) : ( -9 ) + ( -6 ) . ( -1 ) . ( + 8 )= 48
( -9 ) : ( -9 )= 1
( -6 ) . ( -1 ) . ( + 8 )= +6.(+8)= 48
e) ( - 6 )2 – ( + 5 )3= -89
( - 6 )2= -6.-6= 36
– ( + 5 )3= -5.-5.-5= -125
36-125= -89
f) ( + 5 ) . ( - 3 ) + ( - 4 )0 – ( - 1 )12 = -13
( + 5 ) . ( - 3 ) =-15
( - 4 )0= 1
– ( - 1 )12= -(-1)= 1
-15+1= -14+1= -13
tutizera204:
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