简便运算1.135+3.346+5.557+7.768+9.979
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简便运算1.135+3.346+5.557+7.768+9.979简便运算1.135+3.346+5.557+7.768+9.979简便运算1.135+3.346+5.557+7.768+9.9791
简便运算1.135+3.346+5.557+7.768+9.979
简便运算1.135+3.346+5.557+7.768+9.979
简便运算1.135+3.346+5.557+7.768+9.979
1.135+3.346+5.557+7.768+9.979
1.135+3.346+5.557+(5.557+2.211)+(5.557+4.422)
//注:把7.768分成5.557+2.211,把9.979分成5.557+4.422
1.135+3.346+5.557+5.557+2.211+5.557+4.422
(1.135+4.422)+(3.346+2.211)+5.557+5.557+5.557
5.557+5.557+5.557+5.557+5.557
5.557×5=27.785