0.48+3.52+0.52+6.48的简便

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0.48+3.52+0.52+6.48的简便0.48+3.52+0.52+6.48的简便0.48+3.52+0.52+6.48的简便0.48+3.52+0.52+6.48=(0.48+0.52)+(3

0.48+3.52+0.52+6.48的简便
0.48+3.52+0.52+6.48的简便

0.48+3.52+0.52+6.48的简便
0.48+3.52+0.52+6.48
=(0.48+0.52)+(3.52+6.48)
=1+10
=11

A+B+C+D=(A+B)+(C+D)