These place-value activities focus on two-digit numbers. They include hands-on math centers and worksheets to help your students understand base ten and number decomposition.In this resource, you will find Centers and worksheets to understand two-digit numbers.The activities included are:100 Chart100 Chart puzzles.Write the Room Activity.Spinner Center.Counting Task Cards.Count and cover.Worksheets.All these activities are designed to consolidate the knowledge of tens and ones and be able to und