Point out your errors:
4:一百十一: 111——一百一十一
11:八万七千三百四十六: 8.7348——八万七千三百四十八
15:十一万一百: 11.0100——十一万零一百
18:一万一千一百十一: 1.1111——一万一千一百一十一
This has been very good.
A lot of contact you will progress faster.
In China, the count does not use symbols: ( . ) The use of the symbol ( ' ) , because the symbol( . ) is used in a digital "0", as the decimal used.