1 8 ×14÷ 7 8 ( 4 5 + 3 10 )÷ 3 10 5 6 ÷( 1 2 + 5 6 ) 3 4 ÷ 1

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  • (1)

    1

    8 ×14÷

    7

    8 ,

    =

    1

    8 ×(14×

    8

    7 ),

    =

    1

    8 ×16,

    =2;

    (2)(

    4

    5 +

    3

    10 )÷

    3

    10 ,

    =(

    4

    5 +

    3

    10 )×

    10

    3 ,

    =

    4

    5 ×

    10

    3 +

    3

    10 ×

    10

    3 ,

    =

    8

    3 +1,

    =3

    2

    3 ;

    (3)

    5

    6 ÷(

    1

    2 +

    5

    6 ),

    =

    5

    6 ÷

    8

    6 ,

    =

    5

    8 ;

    (4)

    3

    4 ÷

    15

    16 ÷

    5

    6 ,

    =

    3

    4 ×

    16

    15 ×

    6

    5 ,

    =

    4

    5 ×

    6

    5 ,

    =

    24

    25 ;

    (5)1÷

    1

    100 ÷

    1

    100 ,

    =100×100,

    =10000;

    (6) 4

    4

    5 ×4

    3

    5 - 4

    4

    5 ×3.6,

    = 4

    4

    5 ×(4

    3

    5 -3.6),

    = 4

    4

    5 ×1,

    = 4

    4

    5 ;

    (7)

    44

    45 ×46,

    =

    44

    45 ×(45+1),

    =

    44

    45 ×45+

    44

    45 ×1,

    =44+

    44

    45 ,

    =44

    44

    45 ;

    (8)(

    1

    2 +

    2

    3 +

    3

    4 )×24,

    =

    1

    2 ×24+

    2

    3 ×24+

    3

    4 ×24,

    =12+16+18,

    =28+18,

    =46.