如题所述
第1个回答 2015-05-21
32+63x31-123
解：
=31+1+63x31-31x4+1
=31x1+63x31-31x4+2
=(63+1)x31-31x4+2
=64x31-4x31+2
=(64-4)x31+2
=60x31+2
=1860+2
=1862
祝学习进步。本回答被网友采纳
解：
=31+1+63x31-31x4+1
=31x1+63x31-31x4+2
=(63+1)x31-31x4+2
=64x31-4x31+2
=(64-4)x31+2
=60x31+2
=1860+2
=1862
祝学习进步。本回答被网友采纳
