Traditional Abacus Illustration - Historical Calculation Tool #1778044 (License: Personal Use)

This black-and-white line drawing depicts a standard Chinese suanpan-style abacus with seven horizontal rods, each carrying ten beads-two in the upper deck (each worth 5) and five in the lower deck (each worth 1). The beads are arranged to represent a specific numeric value, demonstrating how users perform addition, subtraction, multiplication, and division through bead manipulation. The clean, schematic style emphasizes clarity and pedagogical utility.

Used in educational articles, math history pages, or cultural heritage content to illustrate pre-digital computation methods; matches user intent for learning about ancient tools, STEM education, or comparative calculation systems.