Double of 7.

**The reasoning** "Double" means **multiply by 2** or **add the number to itself**. It's asking: what is 7 × 2? 7 × 2 = **14** Or think of it as: 7 + 7 = **14** This is a basic arithmetic concept called **multiplication as repeated addition**. When you double any number, you're simply taking two of that number. **Why the wrong options tempt you** - **A) 10** — You might mistakenly add 3 to 7 instead of doubling. This catches students who rush. - **B) 13** — This is 7 + 6, perhaps from mental confusion or adding the wrong number. - **D) 16** — This is 7 + 9 or could come from doubling 8 instead of 7. Easy mix-up under exam pressure! These distractors are designed to catch careless errors or confusion about what "double" means. **Quick takeaway** **Double always means "times 2"** — so double of any number *n* is simply *n* × 2, nothing more, nothing less!