计算下面各题,怎样简便就怎样计算.

1个回答

  • (1)184-35-65,

    =184-(35+65),

    =184-100,

    =84;

    (2)591+482+118,

    =591+(482+118),

    =591+600,

    =1191;

    (3)99×126+126,

    =(99+1)×126,

    =100×126,

    =12600;

    (4)125×29×8,

    =(125×8)×29,

    =1000×29,

    =29000;

    (5)638-(238-159),

    =638-238+159,

    =400+159,

    =559;

    (6)473+149-73,

    =473-73+149,

    =400+149,

    =549;

    (7)4600÷25÷4,

    =4600÷(25×4),

    =4600÷100,

    =46;

    (8)125×6×50×8,

    =125×8×(6×50),

    =1000×300,

    =300000;

    (9)(40+4)×25,

    =40×25+4×25,

    =1000+100,

    =1100.