"876+539等于多少"...876+539等于多少

　"9876+4532等于几"...9876+4532等于几

　"8673+5786等于几"...8673+5786等于几

　"876+569等于几"...876+569等于几

　"876-669等于几"...876-669等于几

　"9379+5670+2808等于几"...9379+5670+2808等于几

　"7825-3986等于几"...7825-3986等于几

　"965-876等于几"...965-876等于几

　"9865+3467等于几"...9865+3467等于几

　"876-348等于几"...876-348等于几