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Welding: Math Resources for Welders

Library resources and web links for your welding coursework.

Useful Books

Math Tutoring Resources

Math Tutors at the Learning Resources Center.

Please contact the Learning Resource & Career Center at 425-235-2645,  or by email at 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 

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.) 

FREE Math For Trades Textbook

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

Image of textbook coverMath for Trades, Volume 1

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."


Math for Trades, Volume 2

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.

Math Welding Videos

Videos on Whole Numbers, Fractions, Decimals and Percentages

Videos on Converting Units, Working with Equations, Perimeter, Area, and Volume