1) Resolva as expressões numéricas:
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
Soluções para a tarefa
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Resposta:
Explicação passo-a-passo:
a) 21 : 3 – 4 . ( - 3 ) =
7 + 12 = 19
b) 32 : ( -5 – 3 ) – ( + 14 )
32/-8 - 14 =
-4 - 14 = -18
c) ( -6 ) . ( + 5 ) – ( + 8 ) : ( - 4 )
-30 + 2 = -28
d) ( -9 ) : ( -9 ) + ( -6 ) . ( -1 ) . ( + 8 )
1 + 48= 49
e) ( - 6 )2 – ( + 5 )3
-12 -15 = -27
f) ( + 5 ) . ( - 3 ) + ( - 4 )0 – ( - 1 )12
-15 + 12 = -3
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