"385+438等于几"...385+438等于几

　"3838等于多少"...3838等于多少

　"833-438等于几"...833-438等于几

　"338+451等于几"...338+451等于几

　"7983-4258等于几"...7983-4258等于几

　"498-383等于几"...498-383等于几

　"844-356等于几"...844-356等于几

　"835-345等于几"...835-345等于几

　"853-358等于几"...853-358等于几

　"3384+16384等于几"...3384+16384等于几