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7.2 1.2

7.2÷0.9-1.2*5=8-6=2

就是7.2÷1.2

7.2乘以1.2的简便算法7.2乘以1.2=7.2*(1+0.2)=7.2*1+7.2*0.2=8.64

计算:7.2*1.2=7.2x(1+0.2)=7.2+1.44=8.64

这个是对数的定义n=log1.2 (7.2)

7.2/1.2/3=7.2÷(1.2*3)=7.2÷3.6=2

你好!仅代表个人观点,不喜勿喷,谢谢.

7.2乘以1.2得8.64.7.2元1.2倍等于8.64元.

x=1.2*7.2/6.3 =1.371429

7.2*1.2=8.64

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