"3900除以850等于几"...3900除以850等于几

　"39000除以800等于几"...39000除以800等于几

　"3780除以9等于多少"...3780除以9等于多少

　"3900除以970"...3900除以970

　"3900除以1"...3900除以1

　"3900除以82等于几"...3900除以82等于几

　"3900除以39×25的7等于几"...3900除以39×25的7等于几

　"3900除以900等于几"...3900除以900等于几

　"3900除以975等于几"...3900除以975等于几

　"39000除以267等于几"...39000除以267等于几