用多種方法計(jì)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(xué)數(shù)學(xué) 來源: 題型:071

用多種方法計(jì)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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