The one downside to the above is that the number of digits in the line numbers changes and this makes the spacing a little off after line 9. This can be easily remedied with a minor addition to ...

After nearly five months with tens of thousands of beta testers, T-Mobile Digits is launching to help you stay connected across multiple devices and multiple numbers.

When you are adding larger numbers, it’s often better to use a written method. Column addition is a good written method to add one number to another. It involves putting the digits of each ...

If you can add two 3-digit numbers, then you can use the same method to add 4-digit numbers together. Just remember to add on the number that you have regrouped.