Figure It Out: Mayan System

Represent using Mayan System (Vertical: 20s on top, 1s on bottom): Symbols: Dot (1), Bar (5).

(i) 77

• $77 = 3 \times 20 + 17$.
• Top (20s): 3 dots ($\bullet\bullet\bullet$).
• Bottom (1s): 17 (3 Bars + 2 Dots).

(ii) 100

• $100 = 5 \times 20 + 0$.
• Top: 5 (1 Bar).
• Bottom: 0 (Shell).

(iii) 361

• $361 = 18 \times 20 + 1$.
• Top: 18 (3 Bars + 3 Dots).
• Bottom: 1 Dot.

(iv) 721

• $721 = 1 \times 400 + 16 \times 20 + 1$. (Assuming 3 levels: 400s, 20s, 1s).
• Top (400s): 1 Dot.
• Middle (20s): 16 (3 Bars + 1 Dot).
• Bottom (1s): 1 Dot.