(-191919×9898+989898×1919)÷(-1/2+3.14)=?
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(-191919×9898+989898×1919)÷(-1/2+3.14)=?
(-191919×9898+989898×1919)÷(-1/2+3.14)=?
(-191919×9898+989898×1919)÷(-1/2+3.14)=?
(-191919*9898+989898*1919)/(-1/2+3.14)
=(-19*10101*98*101+98*10101*19*101)/(-1/2+3.14)
=0/(-1/2+3.14)
=0
首先判断被除数,19×18×(-10101×101+10101×101)=0,所以这个题的结果是0
(-191919×9898+989898×1919)÷(-1/2+3.14)
=(-19×10101×98×101+98×10101×19×101)÷2.64
=(-19×98×10101×101+19×98×10101×101)÷2.64
=0÷2.64
=0