beginner

Percentages in Everyday Life

Build practical percentage skills for everyday decisions. Interpret labels, interest, discounts, taxes, markups, and survey data while solving real-world problems and learning to spot when percentages inform or mislead.

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Verified skills you'll gain

DEVELOPING

Computing with Numbers

DEVELOPING

Describing Data Statistically

DEVELOPING

Modeling with Exponentials and Sequences

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Course 2

Shopping and Spending with Percentages

6 lessons

21 practices

You will use percentages to make smart money decisions on real purchases: discounts, sales tax, tips, and markups. You will calculate each operation cleanly and then combine a discount with a tax in a single purchase, always working from the correct base at each step.

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Course 3

Interest, Savings, and Borrowing

5 lessons

19 practices

You will use percentages to make sense of savings, loans, and credit. You will calculate simple and compound interest on realistic amounts, interpret common rate statements, and see clearly why compounding behaves differently from simple interest over time.

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Course 4

Percentages in News and Statistics

6 lessons

21 practices

You will read percentages the way they show up in real reports, polls, charts, and headlines. You will calculate percent changes, interpret shares of clearly defined groups, and learn to spot misleading claims, missing bases, and the difference between percentage points and percent change.

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Course 5

Multi-Step Percent Problems

5 lessons

18 practices

You will combine your percent skills to handle the kinds of real problems that take more than one step: choosing the right base, working backwards from a change, applying changes in sequence, mixing percent and fixed-dollar adjustments, and comparing options to make smart decisions.

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11