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Practice earnings math with AI quizzes from your own notes

Upload a worksheet, lecture slides or notes about pay, commissions and interest. DeckOwl writes multiple-choice, true/false and open questions with explanations. It is a study tool, not a rewards app, so it does not pay you for finishing quizzes.

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Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

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How a math quiz app helps with earnings problems

Pay, wage and interest problems are easier to learn from worked questions than from formulas alone. A math quiz app built on your own course material lets you practice the exact calculations your teacher uses, such as hourly pay, overtime at time and a half, commission rates and compound growth.

Upload pay stubs, wage tables or interest notes as PDF, DOCX, PPTX or images.
Generate multiple-choice, true/false and short-answer questions with explanations.
Study in the browser on the Free plan, with 3 generations per month.
Export to PDF or DOCX on Plus, or to QTI 2.1 and Moodle XML on Pro.

Example math quiz questions on pay and interest

An hourly job pays $18 and you work 35 hours in a week. What is gross weekly pay before taxes?$630. Multiply the hourly rate by the hours worked: 18 × 35 = 630.

You earn $20 per hour with overtime at 1.5 times the rate for hours over 40. What is gross pay for 45 hours?$950. Regular pay is 40 × 20 = 800, and overtime pay is 5 × 30 = 150, for a total of 950.

You earn a 5% commission on $4,000 in sales. How much commission do you earn?$200. Convert the rate to a decimal and multiply: 0.05 × 4,000 = 200.

What is the simple interest on $1,000 at 5% per year for 3 years?$150. Simple interest is principal × rate × time: 1,000 × 0.05 × 3 = 150.

True or false: compound interest earns interest on previously earned interest.True. Each period's interest is added to the balance, so the next period's interest is calculated on a larger amount.

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Questions from your material

Upload PDF, DOCX, PPTX, notes or a photo of a page. The quiz uses the problems and terms in your own source.

Explanations for every answer

Each question includes a short explanation of the method, so you can see where a wage or interest calculation went wrong.

Spaced repetition for flashcards

Turn key formulas such as gross pay, overtime and simple interest into flashcards that come back at the right intervals.

How it works

Upload your notes

Add a PDF, slide deck, text file or photo of your earnings math notes.

Choose the question type

Pick multiple choice, true/false or short answer, then generate the quiz.

Work through the explanations

Answer the questions, read each explanation and repeat the missed ones until they are routine.

Short daily sessions work better than one long cram. Mix the question types so you learn to pick the right method, not just repeat a pattern. Review the explanations for every wrong answer before moving on.

DeckOwl does not pay rewards or points for completing quizzes. If you want a quiz app that tracks what you have learned, the Free plan lets you study in the browser, and Plus adds unlimited generations and PDF or DOCX export.

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Frequently asked questions

How do I calculate gross pay with overtime?

Multiply the regular hours, up to 40 in a typical week, by the hourly rate. Then multiply the hours over 40 by 1.5 times the rate and add the two amounts together.

How often should I practice percentage and interest problems?

Short sessions of 15 to 20 minutes spread over several days work better than one long session. Return to the problems you missed after a day or two so the method sticks.

Does DeckOwl pay me for finishing quizzes?

No. DeckOwl is a study tool that generates quizzes and flashcards from your material, and it does not offer cash or reward points.

What does DeckOwl cost for students?

The Free plan includes 3 generations per month and browser study with no credit card needed. Plus is $99.90 per year or $9.99 per month, and students with a school email get 40% off.

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