0.65×10.9×6.5简便方法
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题目错误
0.65+10.9×6.5
=6.5*0.1×10.9×6.5
=6.5*(0.1+10.9)
=6.5*11
=6.5*10+6.5
=65+6.5
=71.5
0.65+10.9×6.5
=6.5*0.1×10.9×6.5
=6.5*(0.1+10.9)
=6.5*11
=6.5*10+6.5
=65+6.5
=71.5
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