来自郝玉霞的问题
(1)1.08÷(3.94+34.3×0.2)-0.08(2)15÷[(23+15)×113].
(1)1.08÷(3.94+34.3×0.2)-0.08
(2)15÷[(23+15 )×113].
1回答
2020-07-1522:59
(1)1.08÷(3.94+34.3×0.2)-0.08(2)15÷[(23+15)×113].
(1)1.08÷(3.94+34.3×0.2)-0.08
(2)15÷[(23+15 )×113].
(1)1.08÷(3.94+34.3×0.2)-0.08,
=1.08÷(3.94+6.86)-0.08,
=1.08÷10.8-0.08,
=0.1-0.08,
=0.02;
(2)15÷[(23+15)×113],
=15÷[38×113],
=15÷4294,
=154294