Question

Calcule as expressões: a) -350-[+ 28.6+(-45: 9 -3)]= b) 500+ {-235: 5 +[84: 2-( -3.8 -18)]} c) 635- (-500 .4 - 5000:2 -(2.750 +120)]} d) 725 +(-812:4) + 360 - 120 .(-5) =​

Answer 1

Resposta:

Explicação passo a passo:

350 - [ + 28 x 6 + ( - 45 / 9 - 3 )]

- 350 - [ + 28 x 6 + ( - 5 - 3 )]

- 350 - [ + 28 x 6 + 8 ]

- 350 - [ + 168 + 8]

- 350 - 176

526

500 + { -235 / 5 + [ 84 / 2 - ( - 3 x 8 - 18 ) ] }

500 + { -235 / 5 + [ 84 / 2 - ( - 24 - 18 ) ] }

500 + { -235 / 5 + [ 84 / 2 -  42 ] }

500 + { -235 / 5 + [ 42 -  42 ] }

500 + { -235 / 5 + 0 }

500 + 47

547

635 - [ - 500 x 4 - 5000 / 2 - (2750 + 120 ) ]

635 - [ - 500 x 4 - 5000 / 2 - 2870]

635 - [ - 500 x 4 - 5000 / 2 - 2870]

635 - [ 2000 - 5000 / 2 - 2870]

635 - [ 2000 - 2500 - 2870]

635 - [ - 500 - 2870]

635 - 3370

- 2735

25 + ( - 812 / 4 ) + 360 - 120 x ( - 5 )

25 + 203 + 360 - 120 x (- 5 )

25 + 203 + 360 + 600

1188