# Technical Math For Dummies

Published: 07-13-2010

Technical Math For Dummies is your one-stop, hands-on guide to acing the math courses you’ll encounter as you work toward getting your degree, certification, or license in the skilled trades.

You’ll get easy-to-follow, plain-English guidance on mathematical formulas and methods that professionals use every day in the automotive, health, construction, licensed trades, maintenance, and other trades. You’ll learn how to apply concepts of algebra, geometry, and trigonometry and their formulas related to occupational areas of study. Plus, you’ll find out how to perform basic arithmetic operations and solve word problems as they’re applied to specific trades.

• Maps to a course commonly required by vocational schools, community and technical college, or for certification in the skilled trades
• Covers the basic concepts of arithmetic, algebra, geometry, and trigonometry
• Helps professionals keep pace with job demands

Whether you’re a student currently enrolled in a program or a professional who is already in the work force, Technical Math For Dummies gives you everything you need to improve your math skills and get ahead of the pack.

## Articles From Technical Math For Dummies

5 results
5 results
Technical Math For Dummies Cheat Sheet

Cheat Sheet / Updated 04-27-2022

Grasping some technical math basics can simplify everyday situations faced by many professionals and even non-professionals, including having to solve word problems, calculate tips, make change, or match American and metric measurements.

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Matching American and Metric Units of Measurement

Article / Updated 03-26-2016

If you’ve ever had to match American and metric measurement units, you know direct comparisons of these unit systems can be tricky. If you need to know the metric equivalent of an inch, for example, or the American equivalent of a kilometer, use the following table to help you make a proper comparison between the two systems of measurement. American Length Metric Length * millimeter inch centimeter (0.4 inches) foot (12 inches) * yard (3 feet) meter (39.37 inches) rod (16.5 feet) * furlong (1/8 mile) * mile (5,280 feet) kilometer (0.6214 miles) American Area Metric Area square inch square centimeter (0.1550 square inches) square foot (144 square inches) square decimeter (0.1076 square feet) square yard (9 square feet) * acre (43,560 square feet) hectare (10,000 square meters, 0.01 square kilometers, 0.4047 acres) square mile (640 acres) square kilometer (0.3861 square miles) American Volume Metric Volume * cubic millimeter cubic inch cubic centimeter (0.0610 cubic inches) cubic foot (1,728 cubic inches) cubic meter (0.0283 cubic feet) cubic yard (27 cubic feet) cubic meter (0.7645 cubic yards) American Weight Metric Weight * gram grain * dram (27.3438 grains) * ounce (437.5 grains) * pound (16 ounces, 7,000 grains) * * kilogram (1,000 grams) hundredweight (100 pounds) * ton (20 hundred weight, 2,000 pounds) tonne (1,000 kilograms, 1.1023 tons) long hundredweight (112 pounds) * long ton (20 long hundredweight, 2,240 pounds) * American liquid volume Metric liquid volume * milliliter fluid ounce (29.5735 milliliters) * cup (8 fluid ounces) * pint (16 fluid ounces) * * liter (1,000 milliliters, 1.0567 quarts) quart (32 fluid ounces, 2 pints) * gallon (4 quarts) * American Temperature Metric temperature degrees Fahrenheit degrees Kelvin

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Simple Steps for Solving Word Problems

Article / Updated 03-26-2016

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Counting Change for Customers the Old-Fashioned Way

Article / Updated 03-26-2016

Although many cashiers simply dump all your change in your hand at once, counting change the old-fashioned way ensures that customers get the proper amount. Here’s an easy way to make a customer’s change, using counting and simple addition: Leave the payment in plain sight on top of the cash drawer. Say your customer gives you a \$10.00 bill for a \$9.56 purchase. Put it on the cash drawer while you gather the change. Count the change out and give it back to the customer, starting with the smallest coins and describing what you’re giving. For the example of \$9.56, say “Your purchase was \$9.56, out of \$10.00. That’s \$9.56, plus 4 cents (4 pennies) makes \$9.60, plus 5 cents (a nickel) makes \$9.65, plus 10 cents (a dime) makes \$9.75, plus 25 cents (a quarter) makes \$10.00.”

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Calculating a Standard 15-Percent Tip

Article / Updated 03-26-2016