Skip counting by 5s and 10s is something Kinders practice progressively. I absolutely love this 5-100 wall chart that we make together and then hang to use for the rest of the year. It means that no matter where in the classroom the little ones sit or wander they can still see the numbers as they're learning and for when they need prompting. I make 2 banners, 0-50 and 50-100 that hang side by side from high on the wall down to about desk height. I don't want anyone's view getting blocked!
Since this chart has been popular on Pinterest I have re-created the numbers in the chart and they're now available as a free download at Liz's Early Learning Spot.
I hope you are able to make use of these numbers and wish you happy teaching and learning.