计算下面各题,能简便的用简单运算

1个回答

  • (1)27×86+86×73,

    =(27+73)×86,

    =100×86,

    =8600;

    (2)201-(960+627)÷23,

    =201-1587÷23,

    =201-69,

    =132;

    (3)(250-72)×20,

    =178×20,

    =3560;

    (4)199×49+49,

    =(199+1)×49,

    =200×49,

    =9800;

    (5)76×125,

    =(80-4)×125,

    =80×125-4×125,

    =10000-500,

    =9500;

    (6)25×[480-÷16],

    =25×[480-896÷16],

    =25×[480-56],

    =25×424,

    =10600.