Use this product to help students move flexibly between the pictorial representation (base ten blocks), standard form and expanded form of numbers. In this product, you will find two levels, and a blank version of each for you to use to create additional practice sheets. Find Base Ten Sorting Mats as well as a further modified version of this product for students needing even more support at my Write Solutions store. I'd love to know how this worked in your classroom. Please share in the feedback!