"嗯八十除以十五"...嗯八十除以十五
"嗯八十除以十二"...嗯八十除以十二
"八十十除以十"...八十十除以十
"八十除以5×4"...八十除以5×4
"八十除以十等于多少"...八十除以十等于多少
"八十除以一十"...八十除以一十
"八十除以八除以二"...八十除以八除以二
"八十除以5×2"...八十除以5×2
"八十除以5×3"...八十除以5×3
"八十除以3×2"...八十除以3×2