Author: Nino Marion

Math for Welders was developed specifically for welding students at any level, providing a real-world approach to learning math as it applies to welding. The text begins with a basic review of math, and then progresses to more challenging math concepts. The text features hundreds of welding-related and basic math problems to provide real-world experience and prepare students for the same scenarios they will encounter on the job. This new edition includes a second color in the design of the text to help clarify formulas and math examples and increase visual interest. For instructors, PowerPoint presentations are now available to help integrate these important math skills into the welding curriculum.

Table of Contents

Abbreviated Contents

Math for Welders 7e, Online Textbook

• Math for Welders
• Copyright © 2024 by The Goodheart-Willcox Company, Inc.
• Preface
• About the Author
• Reviewers
• New to This Edition
• Features of the Textbook
• • Section and Unit Opening Materials
  • Illustrations
  • Equations
  • End-of-Chapter Content
• Tools for Student and Instructor Success
• • Student Tools
  • Instructor Tools
• Brief Contents
• Contents
• Section 1 Whole Numbers
• • Section 1 Outcomes
• Unit 1 Introduction to Whole Numbers
• • Unit 1 Key Terms
  • Unit 1 Introduction
  • Math Work Habits
  • Our Number System
  • Rounding Numbers
  • How to Round Numbers
  • Denominate Numbers
  • Unit 1 Practice
• Unit 2 Addition of Whole Numbers
• • Unit 2 Key Terms
  • Unit 2 Introduction
  • Method Used to Add Whole Numbers
  • Carrying
  • Look for Tens
  • Checking Addition by Adding Up and Down
  • Mark the Answer
  • Denominate Numbers
  • Unit 2 Practice
• Unit 3 Subtraction of Whole Numbers
• • Unit 3 Key Terms
  • Unit 3 Introduction
  • Method Used to Subtract Whole Numbers
  • Borrowing
  • Checking Subtraction by Adding
  • Denominate Numbers
  • Subtraction Terminology
  • Unit 3 Practice
• Unit 4 Multiplication of Whole Numbers
• • Unit 4 Key Terms
  • Unit 4 Introduction
  • Multiplication Table
  • Method Used to Multiply Whole Numbers
  • Accurate Alignment
  • Checking Multiplication by Reversing Positions
  • Smaller Multiplier
  • Denominate Numbers
  • Unit 4 Practice
• Unit 5 Division of Whole Numbers
• • Unit 5 Key Terms
  • Unit 5 Introduction
  • Method Used to Divide Whole Numbers
  • Division Equation Variations
  • Checking Division by Multiplying
  • Do Not Crowd
  • Denominate Numbers
  • Unit 5 Practice
• Section 2 Common Fractions
• • Section 2 Outcomes
• Unit 6 Introduction to Common Fractions
• • Unit 6 Key Terms
  • Unit 6 Introduction
  • Parts of a Fraction
  • Proper Fractions
  • Improper Fractions
  • Mixed Numbers
  • Equivalent Fractions
  • Reducing Improper Fractions
  • Changing Mixed Numbers to Improper Fractions
  • Unit 6 Practice
• Unit 7 Addition of Fractions
• • Unit 7 Key Terms
  • Unit 7 Introduction
  • Methods Used to Add Fractions
  • Unit 7 Practice
• Unit 8 Subtraction of Fractions
• • Unit 8 Introduction
  • Methods Used to Subtract Fractions
  • Borrowing a Whole Number for a Fraction
  • Unit 8 Practice
• Unit 9 Multiplication of Fractions
• • Unit 9 Introduction
  • Methods Used to Multiply Fractions
  • Unit 9 Practice
• Unit 10 Division of Fractions
• • Unit 10 Key Terms
  • Unit 10 Introduction
  • Methods Used to Divide Fractions
  • Unit 10 Practice
• Section 3 Decimal Numbers
• • Section 3 Outcomes
• Unit 11 Introduction to Decimal Numbers
• • Unit 11 Key Terms
  • Unit 11 Introduction
  • Converting Decimal Numbers to Common Fractions
  • Converting Common Fractions to Decimal Numbers
  • Rounding Decimals
  • Unit 11 Practice
• Unit 12 Addition and Subtraction of Decimal Numbers
• • Unit 12 Introduction
  • Method Used to Add Decimal Numbers
  • Method Used to Subtract Decimal Numbers
  • Unit 12 Practice
• Unit 13 Multiplication of Decimal Numbers
• • Unit 13 Introduction
  • Method Used to Multiply Decimal Numbers
  • Multiplication of Decimals by 10, 100, 1,000, Etc.
  • Unit 13 Practice
• Unit 14 Division of Decimal Numbers
• • Unit 14 Introduction
  • Method Used to Divide Decimal Numbers
  • Division of Decimals by 10, 100, 1,000, Etc.
  • Unit 14 Practice
• Section 4 Measurement
• • Section 4 Outcomes
• Unit 15 Linear Measure
• • Unit 15 Key Terms
  • Unit 15 Introduction
  • US Customary System
  • SI (Metric) System
  • Converting Linear Measurements
  • Adding Feet and Inches
  • Subtracting Feet and Inches
  • Multiplying Feet and Inches
  • Dividing Feet and Inches
  • Tolerance
  • Unit 15 Practice
• Unit 16 Angular Measure
• • Unit 16 Key Terms
  • Unit 16 Introduction
  • Angular Measurement
  • Angular Calculation
  • Unit 16 Practice
• Unit 17 Four-Sided Measure
• • Unit 17 Key Terms
  • Unit 17 Introduction
  • Square
  • Rectangle
  • Parallelogram
  • Trapezoid
  • Converting Square Units of Measure
  • Unit 17 Practice
• Unit 18 Triangular Measure
• • Unit 18 Key Terms
  • Unit 18 Introduction
  • Right Triangle
  • Equilateral Triangle
  • Isosceles Triangle
  • Perimeter of a Triangle
  • Area of a Triangle
  • Unit 18 Practice
• Unit 19 Circular Measure
• • Unit 19 Key Terms
  • Unit 19 Introduction
  • Circle Terms and Principles
  • Circular Shapes
  • Unit 19 Practice
• Section 5 Volume, Weight, and Bending Metal
• • Section 5 Outcomes
• Unit 20 Volume Measure
• • Unit 20 Key Terms
  • Unit 20 Introduction
  • Volume of Regular Objects
  • Converting Volume Measurements
  • Volume of Irregular Objects
  • A Word of Caution
  • Unit 20 Practice
• Unit 21 Weight Measure
• • Unit 21 Key Terms
  • Unit 21 Introduction
  • Weight Calculation Based on Volume
  • Weight Calculation Based on Length
  • Unit 21 Practice
• Unit 22 Bending Metal
• • Unit 22 Key Terms
  • Unit 22 Introduction
  • 90 ° Sharp Corner Bend
  • Cylinder
  • Half Cylinder
  • Quarter Cylinder
  • Unit 22 Practice
• Section 6 Percentages and the Metric System
• • Section 6 Outcomes
• Unit 23 Percentages
• • Unit 23 Key Terms
  • Unit 23 Introduction
  • Changing a Percent to a Fraction
  • Changing a Percent to a Decimal
  • Changing a Fraction to a Percent
  • Changing a Decimal to a Percent
  • Calculating a Percent of a Number
  • Calculating the Percent One Number Is of Another Number
  • Unit 23 Practice
• Unit 24 The Metric System
• • Unit 24 Key Terms
  • A Metric Workplace
  • The Metric System
  • Length
  • Mass
  • The Language of SI
  • Unit 24 Practice
• Appendix
• • Useful Information
  • Summary of Formulas
• Glossary
• • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
• Index
• • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
• Answers to Odd-Numbered Practice Problems
• • Section 1: Whole Numbers
  • Section 2: Common Fractions
  • Section 3: Decimal Numbers
  • Section 4: Measurement
  • Section 5: Volume, Weight, and Bending Metal
  • Section 6: Percentages and the Metric System