"856+856等于几"...856+856等于几

　"856-579等于几"...856-579等于几

　"856+288等于几"...856+288等于几

　"856%等于几"...856%等于几

　"856-368+218等于几"...856-368+218等于几

　"198+686等于几"...198+686等于几

　"856-368等于几"...856-368等于几

　"856+72÷9等于多少"...856+72÷9等于多少

　"869+578等于几"...869+578等于几

　"874+198等于几"...874+198等于几