1234+3142+4321+2413 用简便方法做苏教版

1234+3142+4321+2413=? 巧算：1234+3142+4321+2413=? 1234+3142+4321+2413 用简便方法做苏教版 1234十3142十4321十2413简算 用简便方法计算：1234+3142+4321+2413 =用简便方法计算：1234+3142+4321+2413= 1234+3124+4321+2413 1234+3142+4321+24134的简便运算 1234,1243,1324,1342,1423,1432,2134,2143,2341,2314,2413,2431,3124,3142,3214,3241,3412,3421,4321,4312,4123,4132,4213,4231按大小排序 观察算式规律将算式补充完整并写出结果1234+2413+4321+( )=( ) 几个简便计算,哥哥姐姐们,速求,（1）9*17+91/17-5*17+45/17（2）51*49+3.15*49+51*3.15（3）1234+3142+4321+2413（4）123+234+345+456+567+678+789 1234+4321 1+1234*4321*4321*1234 1234+1234+1234+1234+4321+4321+4321＝ 1234*432143214321-4321*123412341234 1234=4321? 1234等于4321吗 1234+4321=x 1234×4321等于多少?