"268+138等于几"...268+138等于几

　"268-198等于几"...268-198等于几

　"268+268等于多少"...268+268等于多少

　"268+342等于几"...268+342等于几

　"3298+268等于几"...3298+268等于几

　"268+1885等于几"...268+1885等于几

　"268+732等于几"...268+732等于几

　"268+142等于几"...268+142等于几

　"268+117等于几"...268+117等于几

　"268+168等于几"...268+168等于几