Mastering Math for the Kaplan Nursing Entrance Exam

Are you gearing up for the Kaplan Nursing Entrance Exam? If math isn’t your strong suit, don’t sweat it. Let’s break down an interesting algebra expression together: "nine times the difference of a number and 10." It may sound like a mouthful, but once you get the hang of it, it’ll seem like a piece of cake!

First off, let’s dissect this phrase. We’re looking for the difference between a number—let’s call it ( a )—and the number 10. That gives us ( a - 10 ). Easy enough so far, right? Now, when you see "nine times," that’s our cue to multiply the difference we just found by 9. So, it’s ( 9 \times (a - 10) ).

This setup leads us to the correct mathematical expression: ( 9(a - 10) ). Sure, it’s quite straightforward when you break it down step by step. This meticulous approach makes it easier to understand how to tackle similar problems.

Now, let’s look at the other answer choices to ensure we know why they don’t fit. Option A, ( 9a + 10 ), mistakenly suggests you're adding rather than considering a difference and multiplying by 9. Picture this: if you’re calculating savings, wouldn’t you want to know what you’ve saved rather than just adding random numbers? Right?

Then there's option C, ( 10 - 9a ). This one completely flips the order and puts things in a confusing light. It’s as if you’re looking at an upside-down map of your trip – not helpful when you’re trying to get from point A to point B effectively.

Finally, we have option D, ( (a - 10)9 ). While it seems technically right because it boils down to the same multiplication idea, it’s just a less standard way of putting it. Think about it like this: Would you rather order a burger with all the toppings awkwardly piled on top, or in an appealing presentation? Simplicity can be beautiful!

So, the entire crux here revolves around understanding differences and multiplications in expressions. It’s like piecing together a puzzle; once you fit each piece in the right spot, the whole picture becomes clear. Plus, mastering these principles isn't just about acing the Kaplan Nursing Entrance Exam—these skills will serve you well in your future nursing career, especially when dealing with medication dosages or calculating patient information.

Don’t hesitate to practice more expressions on your own using this method. Finding ways to simplify and break down complex phrases into manageable steps can lighten the load of studying. And who knows? With a little practice and patience, you could actually start to enjoy the thrill of numbers!

So let’s get cracking – because in nursing, just like in math, understanding the details can make all the difference in the world!