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Published:
February 25, 2013

Math For Real Life For Dummies

Overview

The easy way to brush up on the math skills you need in real life

Not everyone retains the math they learned in school. Like any skill, your ability to speak "math" can deteriorate if left unused. From adding and subtracting money in a bank account to figuring out the number of shingles to put on a roof, math in all of its forms factors into daily life. Math For Real Life For Dummies provides you with the simple formulas and theorems that you're likely to encounter in the workplace, the kitchen, and even when playing games.

You can turn to Math For Real Life For Dummies to brush up on your math skills or to handle everyday encounters, like calculating restaurant tips, understanding interest rates, and figuring out percentages and odds. Packed with real-world examples that make sense, Math For Real Life For Dummies takes the stress out of your daily calculation encounters.

  • Provides tips for understanding and using basic mathematical concepts
  • Shows you how math helps the mind to reason and organize complicated situations or problems into clear, simple, and logical steps
  • Covers all of the math skills you're likely to need in everyday situations

If you're looking for a practical, plain-English guide to mastering everyday math skills, Math For Real Life For Dummies has you covered.

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About The Author

Barry Schoenborn, a longtime math, science, and technical writer, is the coauthor of Technical Math For Dummies, Medical Dosage Calculations For Dummies, and Physician Assistant Exam For Dummies.

Sample Chapters

math for real life for dummies

CHEAT SHEET

Using real-life math can simplify everyday situations. Math comes in handy every time you take a trip, go shopping, or do projects around the house.Estimating taxes and discounts when shoppingWhen you go shopping, you often encounter discounts and sales offers that change the price of an item. In addition, many states in the United States charge sales tax, and if you’re shopping abroad, you may face a value added tax.

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Many household projects require that you be able to calculate area or volume. Whether you're painting your kid's room, mulching your flowerbed for the winter, planting grass seed in the spring, or tackling any other project for which you need to find out how much of something you need to cover, knowing how to figure area and volume is a time- and money-saver.
Nowadays, grade point averages are a big deal, especially for college-bound students and their anxious parents. GPA is easy to calculate if you understand that it's simply an average. To determine an average, you add up all the values in the group and then divide that total by the number of values in the group.
If you drive a car or have ever flown in an airplane, you've probably noticed that time, speed, and distance are related. Here's the basic formula for distance (d), which equals speed (called velocity in science and represented by v) multiplied by time (t): From this simple formula, you can derive these other formulas as well: By knowing any two of the components, you can use these formulas to figure out the third.
When you go shopping, you're often faced with discounts and sales offers that change the price of an item. In addition, many states in the United States charge sales tax, and if you're shopping abroad, you may face a value added tax (VAT). To determin how much the total will be (and whether it fits into your budget or whether you have enough cash on hand to make the purchase), you need to be able to calculate the discounted price as well as determine the sales and any other taxes.
Using real-life math can simplify everyday situations. Math comes in handy every time you take a trip, go shopping, or do projects around the house.Estimating taxes and discounts when shoppingWhen you go shopping, you often encounter discounts and sales offers that change the price of an item. In addition, many states in the United States charge sales tax, and if you’re shopping abroad, you may face a value added tax.
Many real-life math problems don't require exact solutions or precise calculations. When you need an approximate idea of length, you have a handy-dandy "ruler" always nearby: your body. Yes, your body — and its various parts — can serve as a quick length estimator. Your hand: The width of your palm is about 4 inches (10 centimeters).
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