9.9 4.7 4.7简便计算

4.7*9.9=4.7*(10-0.1)=4.7*10-4.7*0.1=47-0.47=46.53

9.9+4.7=10-0.1+4.7=14.7-0.1=14.6求采纳!!!

4.7*9.9=4.7*(10-0.1)=4.7*10-4.7*0.1=47-0.47=46.53

4.7*9.9+4.7 =4.7*(9.9+0.1) =4.7*10 =47

4.7*9.9+ 1.1*4.7-4.7=4.7x(9.9+1.1-1)=4.7x10=47,你好,本题已解答,如果满意 请点右下角“采纳答案”.

4.7*9.9+0.47=4.7*9.9+4.7*0.1=4.7*(9.9+0.1)=4.7*10=47

(99+1)*4.7

4.7*9.9+0.47的简便运算4.7*9.9+0.47=4.7*9.9+4.7*0.1=4.7*(9.9+0.1)=4.7*10=47

4.7*9.9=4.7*(9.9+0.1)-0.47=47-0.47=46.53

你好!9.9*4.7+0.47=9.9*4.7+0.1*4.7=(9.9+0.1)*4.7=10*4.7=47 仅代表个人观点,不喜勿喷,谢谢.

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