Library resources and web links for your welding coursework.

- Practical Problems in Mathematics for Welders byCall Number: 510.2467 CHASAN 2009ISBN: 9781418042295Publication Date: 2008-03-05"This book will provide readers with the mathematical tools needed to be successful in their welding careers."
- College Mathematics for Trades and Technologies byCall Number: 512.1 CLEAVES 2019ISBN: 9780134690339Publication Date: 2018-01-09Introduces the basic math, algebra, and geometry needed in career programs, including fields such as personal finance, healthcare, construction, and industrial trades.
- Mathematics for the Trades byCall Number: 513.14 SAUNDER 2019ISBN: 9780134756967Publication Date: 2018-01-01Authentic applications give students relevant, tangible mathematical examples that they are likely to encounter in future careers.

**Math Tutors at the Learning Resources Center.**

Please contact the Learning Resource & Career Center at 425-235-2645, or by email at lrcc@rtc.edu to set up an appointment with a math tutor.

**Online Tutoring.**

Can't get to the Learning Resources Center for tutoring? RTC also offers online help through eTutoring. Contact the LRCC first to get your account activated. Call 425-235-2645, or email lrcc@rtc.edu

**PrepSTEP (From the RTC Library.)**

This great RTC Library online resource offers lessons and practice tests in math from decimals, fractions, percent and ratios, through Algebra and Geometry. To find it, go to the RTC Library database page, click on PrepSTEP, log in using your RTC student email address and password. Click on Core Math and Science Skills. You will be asked to create a personal account in PrepSTEP so you can track your progress.

**Linked In Learning (From the King County Library System.)**

KCLS, in partnership with the RTC Library, offers online videos on pre-algebra, algebra, geometry and more through LinkedIn Learning (formerly Lynda.) Your login is your student ID number, preceded by RTC. Your password is the last four digits of your student number. (If you are staff or faculty, your login is your ID number preceded by ERTC.)

Published in 2021, these two free online textbooks can teach you almost everything you need to know.

This book includes "whole numbers, fractions, decimals, and ercents. The material is presented from a trades perspective with easy-to-understand examples and video explanations accompanying questions."

Covers "converting units and working with equations, perimeter, area, and volume.... (T)he material is presented from a trades perspective with easy-to-understand examples and videos explanations accompanying questions.

- Review of Math - For WeldersReading a tape measure, converting improper fractions to proper factions (where the number on top is lower than the number on bottom), adding and subtracting mixed numbers, adding decimals, converting fractions to decimals, converting decimals to fractions, converting meters, and metric addition - all in a little over 16 minutes.
- Convert Angular to Linear DimensionsHow to change an angular dimension from plans to a linear dimension. 5 minutes.
- Shop Math: 45° Brace and the Pythagorean TheoremHow to figure the size of a brace for a right angled brace. 2 minutes.

- Learn Almost Everything About Fractions in 30 MinutesAdding and subtracting fractions, reducing fractions, multiplying and dividing fractions, and converting fractions to decimals.
- Fractions (Khan Academy)Introduction to fractions, numerators and denominators, and more.
- Percentages Made Easy - Fast Shortcut TrickA quick trick to determining percentages.
- Math Antics - What are Percentages?Covers what percentages are and how they relate to fractions, and how to change percentages to their decimal values.
- Math Antics - Ratios and RatesLearn how ratios show the relationship between two numbers by division.
- Math Antics - Intro to the Metric SystemDiscusses measurement and introduces you to the metric system of measurement.
- What are Whole Numbers?A very short video with a way to remember what whole numbers are.
- Decimal Review"A refresher on how to add, subtract, multiply and divide decimals."
- Convert Any Fraction Into a DecimalShows two ways - easy and more difficult - to convert fractions to decimals.

- Converting units of measureConverting US customary units and metric units, and units of time. Videos and practice questions.
- Metric Units of Length: Convert mm, cm, m and kmCovers converting millimeter, a centimeter, meters, kilometers.
- Converting Imperial Units for LengthQuick, clear video on converting from inches to feet to yards to miles.
- Converting Between Metric and Imperial SystemsConvert from miles to kilometers, grams to pounds, and centimeters to yards, etc.
- How to Solve One-Step EquationsSolving equations with a variable on one side.
- Solving a Two-Step EquationVery short video on solving a more complex equation.
- PerimeterWhat is a perimeter and how do you find the perimeter of a polygon.
- Circles, Circumference And AreaFinding the circumference and area of circles.
- How to Find the Volume of a CylinderHow to find the amount of space a three dimensional object occupies.