"228+252除以28除以13等于几"...228+252除以28除以13等于几

　"2582除以288等于几"...2582除以288等于几

　"21952除以28等于几"...21952除以28等于几

　"22152除以284等于几"...22152除以284等于几

　"22968除以28等于几"...22968除以28等于几

　"2548除以22等于几"...2548除以22等于几

　"228+252除以28等于几"...228+252除以28等于几

　"228+252除以28×10等于几"...228+252除以28×10等于几

　"2582除以324等于几"...2582除以324等于几

　"228+252除以28×13"...228+252除以28×13