What are the even numbers below 100?

The get a list of all even numbers, write the number 2, then slip the next number (3) and write the number 4. Continue by skipping every other number, which will be the odd numbers.

Alternatively, write a consecutive list of all of the numbers from 1 to 50, then multiply each one by 2. The products are all of the multiples of 2, which are even numbers.