Question

{15+[6+(16:2-4)]+10}•3
________________
1440:{30.[20+(49-35) . 2] }
_____________________
[(18+3•2)÷8+5•3]÷6
________________
{[(8•4+3÷7+(3+15÷5)•3]•2-(19-7)÷6}•2+12
___________________________
28+{13-[6-(4+1)+2]-1}
___________________
53-{20-[30-(15-1+6)+2]}
__________________
1000-[(2. 4 -6)+(2+6 .4)]
_____________________
14:2+[13-(4 . 2+1)]
_______________
10×[30÷(2×3+4)+15]
_________________
60+2 .{[4 .(6+2)-10]+12}

pfvr respondam e explique​

Answer 1

Resposta:

{15+[6+(16:2-4)]+10}•3

primeiro resolvemos os parentes ( )

{15+[6+(8-4)]+10}•3

{15+[6+(4)]+10}•3

proximo passo resolver os colchetes [ ]

{15+[6+4]+10}•3

{15+10+10}•3    

proximo passo resolver as chaves

{35}•3 = 105

............................................................ ..........................................................................

1440:{30.[20+(49-35) . 2] }  primeiro resolvemos os parenteses

1440:{30.[20+(4 . 2] } em seguida os colchetes

1440:{30.[20+28] }

1440:{30. 48 }

1440: 1440

=1

Explicação passo-a-passo: