Mastering the Basics of Multiplication for Your Kaplan Nursing Entrance Exam

What operation is used to express '5 times' a variable?

• A. Division
• B. Addition
• C. Multiplication
• D. Subtraction

Answer: (C)

The operation used to express '5 times' a variable is multiplication. In mathematical terms, if you have a variable represented by a letter, such as 'x', then '5 times x' is mathematically written as 5x. This indicates that the variable is being multiplied by the number 5. In arithmetic and algebra, multiplication is the operation that corresponds to repeatedly adding a number. Therefore, when we say '5 times' a variable, we are indicating that the variable is added together five times (x + x + x + x + x). This foundational aspect of multiplication reflects the reason why we denote it as a multiplicative operation. In contrast, operations like division would imply splitting the variable into equal parts, while addition would involve combining two or more quantities, and subtraction would involve removing a quantity from another. The context of 'times' specifically denotes multiplication, affirming that your answer is accurate.

When it comes to preparing for the Kaplan Nursing Entrance Exam, every little math detail can make a significant difference. One of the foundational concepts you're likely to encounter involves understanding multiplication, especially when it's expressed in relation to a variable. So, what does it mean to say '5 times' a variable? Let’s dig in, shall we?

First things first: when you hear ‘5 times’ a number or a variable—like ‘x’—what you’re really dealing with is multiplication. So, you might write it mathematically as 5x. This notation is straightforward: it effectively captures the idea that you’re multiplying the variable ‘x’ by the number 5. It’s like saying, “Hey, if you have a basket of apples and you take 5 of them, you’ve got a bunch of 5 apples—'5 times' the apples, right?”

It can help to think of multiplication as repeated addition. Picture this: if you have a variable x, multiplying it by 5 means you’re adding x together five times—like stacking five identical boxes next to each other. So, you could express it as x + x + x + x + x. Each ‘x’ represents one group, and there you have it—multiplication is just a faster way of saying, “Let’s add this same thing multiple times!”

Now, let’s consider how multiplication fits in with other operations. It’s all about context! Division, for instance, is like cutting a pizza into equal slices. When you divide a variable or number, you’re breaking it down into smaller, equal parts—something entirely different. Addition, on the other hand, combines quantities: think of putting together your favorite toppings on that pizza. And, of course, subtraction is like taking away—maybe one slice for your friend, and now you have less!

So, why is this important for your exam? Well, understanding these differences can not only boost your math skills but also enhance your confidence when you’re tackling those exam questions. Being clear on these operations will help ensure you’re navigating mathematical problems efficiently and accurately.

Ultimately, mastering the basics sets you up for success, especially when facing the diverse subject matter covered in the Kaplan Nursing Entrance Exam. Understanding multiplication, expressed as ‘5 times’ a variable, is more than just knowing an answer; it's about grasping a concept that lays groundwork for your mathematical journey ahead.

In conclusion, whenever you see '5 times' followed by a variable, remember you're diving into multiplication territory. It’s a simple yet crucial piece of your mathematical toolbox. Keep practicing, and you’ll find these operations not only become second nature but also a key part of your successful exam strategy. Happy studying!