Build strong number sense and place value understanding to 1,000 with this comprehensive set of hundreds charts, number lines, worksheets, and puzzles. This best-selling resource gives you everything you need to teach counting, sequencing, number patterns, and place value in a clear, structured, and engaging way. Perfect for 1st grade, 2nd grade, intervention, enrichment, math centers, small-group instruction, and whole-class lessons, this flexible collection includes printable charts from 0