65×0.33+6.5×6.7+6.5简便方法？
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65*0.33+6.5*6.7+6.5=6.5*3.3+6.5*6.7+6.5=6.5*（3.3+6.7）+6.5=65+6.5=71.5
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65*0.33+6.5*6.7+6.5
=6.5*3.3+6.5*6.7+6.5
=6.5（3.3+6.7）+6.5
=6.5*10+6.5
=65+6.5
=71.5
=6.5*3.3+6.5*6.7+6.5
=6.5（3.3+6.7）+6.5
=6.5*10+6.5
=65+6.5
=71.5
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=6.5×10×0.33+6.5×6.7+6.5
=6.5×3.3+6.5×6.7+6.5
=6.5×（3.3+6.7+1）
=6.5×11=71.5
=6.5×3.3+6.5×6.7+6.5
=6.5×（3.3+6.7+1）
=6.5×11=71.5
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