2000乘20102010—2010乘20002000 -
问题描述:
2000乘20102010—2010乘20002000 -
答
2000X20102010-2010X20002000=2000X(20000000+100000+2000+10)-(2000+10)X(20000000+2000)=2000X200000+2000X100000+2000X2000+2000X10-2000X200000-2000X2000-10X200000- 10X2000=2000X100000-10X200000=200000000-...