05/03/2026
【Form 1 Chapter 1 Rational Numbers】
The often overlooked Law of Arithmetic Operations:
1️⃣ Identity Law
2️⃣ Commutative Law
3️⃣ Associative Law
4️⃣ Distributive Law
Below examples are the way to use Law 3️⃣ and 4️⃣ to answer EFFICIENT CALCULATION questions without using a calculator. It may comes out in your coming exam, MAYBE 🤔
#数学老师