用多種方法計算下面各題．

(1)12×4

12×4

12×4

12×4

=______

=______

=______

=______

=______

=______

=______

=______

(2)18×2

18×2

18×2

18×2

=______

=______

=______

=______

=______

=______

=______

=______

=______

=______

=______

=______

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科目：小學數(shù)學 來源：數(shù)學教研室 題型：072

用多種方法計算下面各題．

(1)12×4

12×4

12×4

12×4

=______

=______

=______

=______

=______

=______

=______

=______

(2)18×2

18×2

18×2

18×2

=______

=______

=______

=______

=______

=______

=______

=______

=______

=______

=______

=______

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