"268+132等于几"...268+132等于几

　"268-129等于几"...268-129等于几

　"268+342等于几"...268+342等于几

　"268+124等于几"...268+124等于几

　"268-124等于几"...268-124等于几

　"268+732等于几"...268+732等于几

　"3298+268等于几"...3298+268等于几

　"628+2512等于几"...628+2512等于几

　"268+268等于多少"...268+268等于多少

　"623-278等于几"...623-278等于几