>>1,0000000001+1,00000000012
>>
>>That question was failed by candidates who could answered integral and derivative questions... :))
>__
>I'd be inclined to answer - if the comma is the decimal point this is
>

>1,00000000022
>

Why wouldn't the answer be:
1,0000000001
+1,00000000012
=2,00000000022