1234²-1233×1235 (简便算法
问题描述:
1234²-1233×1235 (简便算法
答
1234*1234-(1234+1)*(1234-1)=1234*1234-4*4+1*1=1
答
1234²-1233×1235
=1234²-(1234-1)(1234+1)
=1234²-(1234²-1)
=1
答
1234²-1233×1235
=1234²-(1234-1)(1234+1)
=1234²-(1234²-1)
=1234²-1234²+1
=1