This extended set of small wooden number cards covers 1–9000, making it the appropriate choice for classrooms where children are working deeper into the decimal system and exploring operations with larger quantities alongside the golden bead material or stamp game. The additional thousands cards allow children to move beyond the typical 1–1000 ceiling without improvisation, supporting the full arc of primary math sequencing. If your class consistently reaches this range, having this set in addition to or in place of the 1–1000 version prevents interruptions mid-lesson.