You can find these teen number worksheets in my set of Kindergarten Math Number Sense Worksheets. (Teachers may call it reversal.) Then they wanted to put them together with another, and then combine them all! These Playdough Number Mats are perfect for a number building center! France arrests 180 in second night of violent protests over police Enjoy watching your child deepen and strengthen her number sense. Recognize numbers from 11-20 out of sequence. (We can also thank Old English for the mysterious R in Mrs.). The 5 means "extra ones." After all the attention we've given to the teen numbers in recent months, she caught on quickly. You use counters or math manipulatives to represent numbers less than or equal to ten on the frame. I am already offering 100+ of my hip educational songs/videos on YouTube FOR FREE at youtube.com/harrykindergarten. The 321Chat App functions exactly like the website. Help her say each number correctly. While the other numbers between 10 and 20 eventually got their own form of lif (the suffix -teen actually comes from ten), 11 and 12 stayed pretty much the same. But thats not all .