May 2019
Beginner
192 pages
3h 30m
English
Content preview from Pre-Algebra Essentials For Dummies
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Chapter 5
Deciphering Decimals
IN THIS CHAPTER
Applying decimals to the Big Four operations
Looking at decimal and fraction conversions
Making sense of repeating decimals
Decimals look and feel more like whole numbers than fractions do, so when working with decimals, you don’t have to worry about reducing and increasing terms, improper fractions, mixed numbers, and a lot of other stuff.
Performing the Big Four operations — addition, subtraction, multiplication, and division — on decimals is very close to performing them on whole numbers. The numerals 0 through 9 work just like they usually do. As long as you get the decimal point in the right place, you’re home free.
In this chapter, I show you all about working with decimals. I also show you how to convert fractions to decimals and decimals to fractions. Finally, I give you a peek into the strange world of repeating decimals.
Performing the Big Four Operations with Decimals
Everything you already know about adding, subtracting, multiplying, and dividing whole numbers carries over when you work with decimals. In fact, in each case, there’s really only one key difference: how to handle that pesky little decimal point. In this
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.