Do you believe that the Search engine gaint are FAIL in math?
Google search engine calculator will display the wrong answer if you try to calculate the very large number. For example 2,999,999,999,999,999 minus 2,999,999,999,999,998 should be get the answer of 1, but google give the answer of “0”. Suprise?
You will only get the correct answer 2,999,999,999,999,999 minus 2,999,999,999,999,990 which the answer is 9.
Basically this post is just for fun, I’m not sure what is the story behind the calculation error, maybe is a bugs, or maybe Google have their own explaination on it.