"268+142等于几"...268+142等于几

　"268-124等于几"...268-124等于几

　"248+268等于几"...248+268等于几

　"268+342等于几"...268+342等于几

　"268-129等于几"...268-129等于几

　"268+941等于几"...268+941等于几

　"628+2512等于几"...628+2512等于几

　"268+138等于几"...268+138等于几

　"268+268等于多少"...268+268等于多少

　"268+732等于几"...268+732等于几