Counting By 10s Worksheets | Download Free Printables For Kids When you skip count by 10s, you're jumping 10 numbers. These counting by 10s worksheets will help you learn the concept easily. Here is an example. Let's skip count by 2s. Start at 0, 0+ = 2, then skip 1 and add 2 to 2. So, 2 + 2 = 4. Now skip the number 3 and add 2 to 4. So, 4 + 2 = 6 and so on.