1.10.01乘以7.8怎样巧算 2.28.9乘以4除以289怎样巧算( )乘以( )=0.4
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1.10.01乘以7.8怎样巧算 2.28.9乘以4除以289怎样巧算( )乘以( )=0.4
1.10.01乘以7.8怎样巧算 2.28.9乘以4除以289怎样巧算
( )乘以( )=0.4
1.10.01乘以7.8怎样巧算 2.28.9乘以4除以289怎样巧算( )乘以( )=0.4
10.01×7.8
=10×7.8+0.01×7.8
=78+0.078
=78.078
28.9×4÷289
=28.9÷289×4
=0.1×4
=0.4
﹙4﹚×﹙0.1﹚=0.4
1.10.01乘以7.8怎样巧算 2.28.9乘以4除以289怎样巧算( )乘以( )=0.4
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