2002+98+997+9996+99995
=2000+2+100-2+1000-3+1000-4+10000-5
=113100-12
=113088
0.1÷0.1÷0.1.0.1 50个0.1
=0.1x10x10x...x10 (49个10)
=1000..00 (48个0)
2002+98+997+9996+99995
=2000+2+100-2+1000-3+1000-4+10000-5
=113100-12
=113088
0.1÷0.1÷0.1.0.1 50个0.1
=0.1x10x10x...x10 (49个10)
=1000..00 (48个0)