简便运算:1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19请您写出过程,求求您了,

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简便运算:1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19请您写出过程,求求您了,

简便运算:1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19请您写出过程,求求您了,
简便运算:1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19
请您写出过程,求求您了,

简便运算:1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19请您写出过程,求求您了,
1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19
=1.1+1.1*3+1.1*5+1.1*7+1.1*9+1.01*11+1.01*13+1.01*15+1.01*17+1.01*19
=1.1*(1+3+5+7+9)+1.01*(11+13+15+17+19)
=1.1*25+1.01*75
=27.5+75.75
=103.25