🔢  🔢

📝🔢🧮

🏫📝➗

📚✏️📐

📚✖️🔢

➕➖✖️➗🤔

🏫칠판χ²

🏫🔣📐

𝑥+𝑦=❓

🏫➗💯

✏️➕➖❓

🏫📐📏🧮=

🏫➕➖

📚📐📏📈

칠판🧮📝√%

✖️🔢📜

🏫📏📐🤷