计算题: (1)(﹣3)+(﹣4)﹣(+11)﹣(﹣9) (2)23÷[(﹣3) 3 ﹣(﹣4)](3) (4) (5)

1个回答

  • (1)(﹣3)+(﹣4)﹣(+11)﹣(﹣9),

    =﹣3﹣4﹣11+9,

    =﹣9;

    (2)23÷[(﹣3) 3﹣(﹣4)],

    =23÷(﹣27+24),

    =﹣1;

    (3)

    =(

    )×(﹣60),

    =

    ×(﹣60),

    =﹣31;

    (4)

    =﹣1÷25×(﹣

    )+0.2,

    =﹣

    ×(﹣

    )+0.2,

    =

    (5)

    =[

    ﹣(

    +

    )×24]÷5×(﹣1);

    =[

    ﹣(﹣

    )×24]÷5×(﹣1);

    =

    ×

    ×(﹣1);

    =﹣

    (6)

    =(﹣2)÷(

    ×

    )×

    +5,

    =﹣2×32×

    +5,

    =﹣395;

    (7)

    =|﹣

    +

    |+|﹣4﹣4|,

    =|﹣

    +

    |+8,

    =

    +8,

    =10

    (8)

    =﹣1+8×5﹣{

    ﹣[﹣12﹣

    ×(﹣2)]}÷3,

    =﹣1+40﹣[

    ﹣(﹣12+

    )]÷3,

    =39﹣4,

    =35.