$6 \times 3 (3 - 1)$ is equal to

### Concept & Strategy The concept required to solve this problem is the fundamental order of operations, commonly known by the acronym BODMAS (Brackets, Orders, Division, Multiplication, Addition, Subtraction). $$ \text{BODMAS Rule applies strictly from left to right for multiplication/division} $$ ### Step-by-Step Solution * **Given Expression:** $6 \times 3 (3 - 1)$ * **Step 1:** Solve the expression inside the brackets first. $(3 - 1) = 2$ * **Step 2:** Substitute the resolved bracket back into the expression. $6 \times 3 \times 2$ * **Step 3:** Perform multiplication from left to right. $18 \times 2 = 36$ ### Exam Strategy & Shortcut For straightforward arithmetic expressions like this, process it purely mentally. Recognize that the bracket simplifies to $2$, and multiply the remaining small integers in your head: $6 \times 3 = 18$, and $18 \times 2 = 36$. Writing down steps costs precious seconds. ### Common Pitfall The most common mistake is misinterpreting the implied multiplication outside the bracket. Some students might multiply $6 \times 3$ to get $18$, and then erroneously subtract $1$ instead of treating the bracket as a grouped entity to be resolved first. Always prioritize the bracketed terms. ### Final Answer Therefore, the correct answer is **36**.