2️⃣📉1️⃣

#factorial sequence #descending multiplication #math steps #two factorial process #calculation steps

🤔📝➡️=

#working out #solving equation #calculation steps #paper calculation #finding the answer

🧠➡️1️⃣()2️⃣²3️⃣✖️➗4️⃣➕➖👍

#thinking process math #calculation steps #follow the order #math logic #problem solving steps #PEMDAS sequence