1+2+3+4+5''''''''+9999+10000+10000
问题描述:
1+2+3+4+5''''''''+9999+10000+10000
答
=(1+10000)×10000÷2+10000
=50005000+10000
=50015000
答
1+2+3+4+5''''''''+9999+10000+10000
=(1+10000)×10000÷2+10000
=50005000+10000
=50015000