"210除以8"...210除以8
"210除以80等于几"...210除以80等于几
"208除以十"...208除以十
"210除以8再除以90等于几"...210除以8再除以90等于几
"210除以八百"...210除以八百
"208除以一百"...208除以一百
"210除以210"...210除以210
"8100除以二十"...8100除以二十
"210除以84"...210除以84
"210除以38"...210除以38