(-191919×9898+989898×1919)÷( 2/1+3.14)是【- (2/1)+3.14)哦】
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(-191919×9898+989898×1919)÷(2/1+3.14)是【-(2/1)+3.14)哦】(-191919×9898+989898×1919)÷(2/1+3.14)是【-(2/1)+3
(-191919×9898+989898×1919)÷( 2/1+3.14)是【- (2/1)+3.14)哦】
(-191919×9898+989898×1919)÷( 2/1+3.14)
是【- (2/1)+3.14)哦】
(-191919×9898+989898×1919)÷( 2/1+3.14)是【- (2/1)+3.14)哦】
(-191919X9898+989898X1919)
=
(-10101×19×9898+98×10101×1919)
=
(-10101×19×98×101+98×10101×19×101)
=0
0÷(2\1+3.14)=0