Number Switches but Generally Good at Math...Is it dyscalculia?

VISITOR: After doing some research I think I could potentially have a form of dyscalculia. While I am not 100% sure by any means I wanted to contact someone to see what's going on with me. 

To start I have always been fairly decent at math, it does take me a little bit to process the information but I am actually able to get by and don't have too much of an issue solving complex problems (I even took a test to see if I have dyscalculia and got a 100% correct on it  in a short amount of time without even struggling). 

The issue I tend to have is what I could only call a jumbling of numbers. I regularly see a number and flip the numbers around. For example; just today I ran a deposit at my bank and ran it for 257.68 I saw the transaction was out of balance and couldn't figure out why. I had to look again and saw that it was actually 258.67. 

This happens quite frequently where I see one number and then realize that I somehow rearranged the order of  some of the numbers and got a different similar set of numbers. I find if I take my time and really pay attention and concentrate on what I am looking at  with each individual number I am fine. 

As someone who is good at math I find it really frustrating to have this issue, especially when I get things wrong because I misread normal numbers. Is this a form of dyscalculia or is it something else? 
DYSCALCULIA.ORG:

Your logic, reasoning, directional sense, sequential memory, memory for math facts and procedures,  and even your working memory must all be sufficient to perform complex quantitative tasks. Your problem seems to be isolated to digit processing. So while you eyes see fine (perception), the order of the digits is not entirely fixed. The visual impression of the numbers is somewhat weak or ambiguous, and during processing, the brain recalls them inaccurately when it comes to taking action on them, like during thinking about, reading, speaking or writing the numbers. 

Knowing that you are prone to this processing glitch, you must triple check place value by isolating numbers and thinking, "8 pennies, 6 dimes, 7 dollars, a fifty, and two hundreds...less than 300." Then look at the whole number and say it, "two hundred fifty seven and 68 cents."  Isolate the digits and compare again after you have written or entered them. In other words, because the brain receives WEAK impressions of numbers, you need to DELIBERATELY pay attention to the order of the numbers and articulate some judgement or opinion about them. Triple check, and assure accuracy.  When there is no room for error (like when something is being sent to the printer), ask someone to check your numbers for accuracy to avoid costly mistakes. And just admit it, sometimes you unconsciously make digit sequencing errors, like some other people make spelling errors. 

It is a very common characteristic of dyscalculia, which contributes greatly to inaccuracies and frustration.  You are lucky that you don't have all of the other conditions that further frustrate number processing and performance.