Prealgebra - What's New

Enhancements

• In Lesson 1.1 “Whole Numbers and Rounding”, clearer instruction and broader answer acceptance have been added for question types involving writing out the English word equivalent of a given number.
  
  
• In Lesson 2.1 “Introduction to Integers”, the look of number lines has been updated to more closely reflect the textbook, and Explain Errors have been updated.
  
  
• Solution screens in Lesson 4.3 “Addition with Mixed Numbers” have been improved.
  
  
• In Lesson 5.5 “Decimals, Fractions, and Scientific Notation”, the answer acceptance has been increased, and the Solution screens have been improved.
  
  
• Step-By-Step screens in Lesson 6.1 “Understanding Percent” have been enhanced.
  
  
• Hint Screens in Lesson 6.3 “Estimating with Percent” have been updated.
  
  
• Step-By-Step screens in Lesson 6.4 “Applications with Percents: Commission, Profit, and Others” have been enhanced.
  
  
• In Lesson 6.5 “Applications: Buying a Car and Buying a Home”, tolerances for answer acceptance have been increased the Step-By-Step and Solution screens have been improved.
  
  
• Step-By-Step screens in Lesson 7.6 “Linear Inequalities (ax + b < c)” have been restructured.
  
  
• Hint screens in Lesson 10.2a “Length” have been updated.
  
  
• Hint and Solution screens in Lesson A.2 “Reading Graphs: Line Graphs, Histograms, and Frequency Polygons” have been enhanced.