4.75乘以4.75加4又4分之3加4又4分之3乘以4.25

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4.75乘以4.75加4又4分之3加4又4分之3乘以4.25

4.75乘以4.75加4又4分之3加4又4分之3乘以4.25
4.75乘以4.75加4又4分之3加4又4分之3乘以4.25

4.75乘以4.75加4又4分之3加4又4分之3乘以4.25
4.75乘以4.75加4又4分之3加4又4分之3乘以4.25
=4.75×(4.75+1+4.25)
=4.75×10
=47.5