0.9+0.98+0.997+0.99994=?(要有运算过程)

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0.9+0.98+0.997+0.99994=?(要有运算过程)
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0.9+0.98+0.997+0.99994=?(要有运算过程)
0.9+0.98+0.997+0.99994=?(要有运算过程)

0.9+0.98+0.997+0.99994=?(要有运算过程)
0.9+0.98+0.997+0.99994=1-0.1+1-0.02+1-0.003+1-0.00006=4-0.12306=3.87694
希望能帮到您,我用的是手机,收不到追问,如果有疑问请发短消息给我,或者求助也可以哈~

掰手指

4-0.12306

计算机不就行了- - 3.87694

(1-0.1)+(1-0.02)+(1-0.003)+(1-0.00006)
=(1+1+1+1)-(0.1+0.02+0.003+0.00006)
=4-0.12306
=3.87694

我是这样口算的0.9+0.98+0.997+0.99994=4-(0.1+0.02+0.003+0.00006)=4-0.12306=3.87694

4-(0.1+0.02+0.03+0.00006)
=4-0.12306
=3.87694

0.9+0.98+0.997+0.99994=(1-0.1)+(1-0.02)+(1-0.003)+(1-0.00006)=(1+1+1+1)-(0.1+0.02+0.003+0.00006)=4-0.12306=3.87694

(1-0.1)+(1-0.02)+(1-0.003)+(1-0.00006)
=(1+1+1+1)-(0.1+0.02+0.003+0.00006)
=4-0.12306
=3.87694
希望能帮到你

0.9+0.98+0.997+0.99994=? (要有运算过程)

0.9+0.98+0.997+0.99994=0.9+0.9+0.08+0.9+0.097+0.9+0.09994=3.6+0.27694=3.87694

(1-0.1)+(1-0.02)+(1-0.003)+(1-0.00006)=4-(0.1+0.02+0.003+0.00006)=4-0.12306=3.87694

0.9+0.98+0.997+0.9994
=1-0.1+1-0.02+1-0.003+1-0.0006
=4-0.1236
=3,8764

0.9+0.98+0.997+0.99994
=(1-0.1)+(1-0.02)+(1-0.003)+(1-0.0006)
=1-0.1+1-0.02+1-0.003+1-0.0006
=1+1+1+1-0.1-0.02-0.003-0.0006
=4-0.1234
=3.87694