"268+128等于几"...268+128等于几

　"268-129等于几"...268-129等于几

　"268+138等于几"...268+138等于几

　"268+124等于几"...268+124等于几

　"268-124等于几"...268-124等于几

　"268+268等于几"...268+268等于几

　"248+268等于几"...248+268等于几

　"198+268等于几"...198+268等于几

　"268+125等于几"...268+125等于几

　"268+342等于几"...268+342等于几