"68+45除以9×8等于几"...68+45除以9×8等于几

　"68-42除以6等于几"...68-42除以6等于几

　"68-48除以6等于几"...68-48除以6等于几

　"68-36除以4等于几"...68-36除以4等于几

　"68-40除以5等于几"...68-40除以5等于几

　"68+42除以5等于几"...68+42除以5等于几

　"68+36除以6等于几"...68+36除以6等于几

　"68除以44等于几"...68除以44等于几

　"67-45除以60等于几"...67-45除以60等于几

　"65-42除以6等于几"...65-42除以6等于几