Skip Counting can be taught at a young age. Skip counting involves adding the same number each time to the previous number. When it comes to skip counting by two, that means you're adding 2 every time. Skip counting is important in the development of fluency in calculation, number sense and as the basis of multiplication and division. It is also important to help students move from calculating by counting by ones to using number facts. NO ANSWER KEY PROVIDED IN THE WORKBOOK!