6×(1-10%),
=6×90%,
=6×0.9,
=5.4(吨),
答:10月份用水5.4吨.
乐乐家9月份用水6吨,10月份比9月份少10%.10月份用水多少吨?
乐乐家9月份用水6吨,10月份比9月份少10%.10月份用水多少吨?
数学人气:482 ℃时间:2020-03-21 12:41:49
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