计算:191919/767676−7676/1919=_.
问题描述:
计算:
−191919 767676
=______. 7676 1919
答
−191919 767676
,7676 1919
=
−19×10101 76×10101
,76×101 19×101
=
−4,1 4
=−3
.3 4