Traditional Abacus Illustration - Educational Math Tool #1778041 (License: Personal Use)

This black-and-white line drawing depicts a traditional abacus with three rows of beads mounted on vertical rods within a rectangular frame, resting on a base. Each row contains varying numbers of beads-ten in the top row, five in the middle, and five in the bottom-reflecting common configurations used in early numeracy education. The sketch-style rendering emphasizes simplicity and clarity, making it suitable for instructional materials.

Used on educational websites, math learning platforms, or history-of-math articles to illustrate ancient calculation methods; targets students, teachers, and curious learners seeking visual aids for arithmetic concepts.