20.11 乘52+20.11乘74-20.11乘26等于几(过程)

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20.11乘52+20.11乘74-20.11乘26等于几(过程)20.11乘52+20.11乘74-20.11乘26等于几(过程)20.11乘52+20.11乘74-20.11乘26等于几(过程)2

20.11 乘52+20.11乘74-20.11乘26等于几(过程)
20.11 乘52+20.11乘74-20.11乘26等于几(过程)

20.11 乘52+20.11乘74-20.11乘26等于几(过程)
20.11*52+20.11*74-20.11*26
=20.11*(52+74-26)主要是提取20.11
=20.11*100
=2011

=20.11*(52+74-26)
=20.11*100
=2011