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All the code you had before handled positive numbers, correct? So, if it's negative, simply add "negative" to the beginning of the string and do the num-word stuff on the absolute value of the number...

I would check the negative part first:


if (num < 0)
{
str += "Negative "; // or what-ever the string your returning is called
num = -num; // get positive num so rest of code works...

The way you're calculating the tens digit isn't giving back the right value for large numbers.. try this:


tens = (num/10) %10;

Mmm... I had code to do just this somewhere :P

In your code where you're checking tenz, you need to add extra code when tenz == 1. It should return the appropriate string depending on what the...