"1638除以2等于几"...1638除以2等于几

　"1678除以2等于几"...1678除以2等于几

　"1866除以6等于几"...1866除以6等于几

　"1684除以2等于几"...1684除以2等于几

　"1679除以2等于几"...1679除以2等于几

　"1798除以2等于几"...1798除以2等于几

　"1685除以2等于几"...1685除以2等于几

　"1673除以2等于几"...1673除以2等于几

　"1866除以4等于几"...1866除以4等于几

　"187除以2等于几"...187除以2等于几