计算 ( 17 18 - 3 4 + 1 6 )÷ 1 36 2 3 ÷8+ 1 3 × 1 8 5 16 ×12× 3

1个回答

  • (1)(

    17

    18 -

    3

    4 +

    1

    6 )÷

    1

    36 ,

    =(

    17

    18 -

    3

    4 +

    1

    6 )×36,

    =

    17

    18 ×36-

    3

    4 ×36+

    1

    6 ×36,

    =34-27+6,

    =7+6,

    =13;

    (2)

    2

    3 ÷8+

    1

    3 ×

    1

    8 ,

    =

    2

    3 ×

    1

    8 +

    1

    3 ×

    1

    8 ,

    =(

    2

    3 +

    1

    3 )×

    1

    8 ,

    =1×

    1

    8 ,

    =

    1

    8 ;

    (3)

    5

    16 ×12×

    3

    4 ×16,

    =(

    5

    16 ×16)×(

    3

    4 ×12),

    =5×9,

    =45;

    (4)

    9

    16 ÷(

    3

    8 +

    1

    16 ),

    =

    9

    16 ÷

    7

    16 ,

    =

    9

    7 ;

    (5)

    4

    5 ×

    5

    6 +

    2

    5 ÷

    3

    5 ,

    =

    2

    3 +

    2

    3 ,

    =

    4

    3 ;

    (6)

    3

    4 ×40%+

    3

    4 ×60%,

    =

    3

    4 ×(40%+60%),

    =

    3

    4 ×1,

    =

    3

    4 ;

    (7)

    4

    5 ÷[(

    5

    8 -

    1

    2 )÷

    5

    8 ],

    =

    4

    5 ÷[

    1

    8 ÷

    5

    8 ],

    =

    4

    5 ÷

    1

    5 ,

    =4;

    (8)(

    5

    6 -

    3

    7 )×42,

    =

    5

    6 ×42-

    3

    7 ×42,

    =35-18,

    =17.