Place value and understanding that numbers are composed of tens and ones is a fundamental concept, forming the basis for work with larger numbers. These 27 Google Classroom slides provide practice for your students with teens and numbers up to 100. Use technology to teach and support students’ understanding of place value and our base-10 number system. This is a perfect addition to your math centers. This visual representation of the number helps students build a concrete number sense. ✅ Click H