Only $$22.990$$\textquotesingle s $$"0"$$ can be removed without causing other digits to change their places from the original number. 
Which of the following numbers\textquotesingle{} value does not change after removing all ``$$0$$''s ． 
1. $$90.221$$ 
2. $$4.106$$ 
3. $$22.990$$ 