Tính:

Tính:×  3  191          6¯    .........

×  16  227              3¯    ............

×  342  748                 2¯    ..............

×  308  172                4¯    .............

Trả lời

×  3191        6¯   19146

×16227        3¯  48681

×342748          2¯  685496

×  308172            4¯  1232688