Grade 8Math

Thinking Skill

Thinking Skill is a skill on Pengi from Lesson 48: Percent of a Whole in Saxon Math, Course 3.

Key Concepts

Property The whole is always 100%. Therefore, the different parts must add up to the total. For example, the percent of questions answered correctly and the percent answered incorrectly must add up to 100%.

Examples If a player makes 80% of her free throws, she misses $100\% 80\% = 20\%$ of them. If 56% of voters chose Candidate A, then $100\% 56\% = 44\%$ of voters chose someone else.

Explanation Think of 100% as a full pizza. If you know you ate 75% of it, you automatically know 25% is left. It works the same with any percentage problem! Knowing the 'yes' part instantly tells you the 'no' part because they both must add up to the whole 100%.

Common Questions

What is Thinking Skill?

Thinking Skill is a skill on Pengi from Lesson 48: Percent of a Whole in Saxon Math, Course 3.

What grade level is Thinking Skill for?

Thinking Skill is part of the Grade 8 Math curriculum, covered in Saxon Math, Course 3. It is designed for students studying Math at the Grade 8 level.

How can I learn Thinking Skill?

Pengi offers an AI-guided lesson for Thinking Skill that walks you through the key concepts step by step. The lesson is aligned to Saxon Math, Course 3 so the content matches what you see in class.

How do I practice Thinking Skill?

After learning the concept, use the Practice mode to work through targeted exercises on Thinking Skill. The AI adapts to your level and gives feedback on each answer so you can identify and fix mistakes.

Which textbook covers Thinking Skill?

Thinking Skill is covered in Saxon Math, Course 3, specifically in Chapter 5: Number & Operations • Algebra under Lesson 48: Percent of a Whole. Pengi's lesson is aligned directly to this textbook so you can follow along with your class.

Is Thinking Skill free to study on Pengi?

Yes, the core Learn and Practice modes for Thinking Skill are available for free on Pengi. No credit card is required to start studying.