LEMMA

Practice

TEAS math practice

Practice for the ATI TEAS math section: 23 topics, from arithmetic and algebra through measurement, data and dosage-style proportions. Type each step; a computer algebra system checks it and names the mistake when it can. Independent practice — not affiliated with the TEAS or its publisher, ATI.

How Lemma checks your work

  • You type each step of your solution, not just the final answer — the same way you would show work on paper.
  • A computer algebra system checks every line for mathematical equivalence and valid moves, not a language model’s guess.
  • When a line is wrong, Lemma names the mistake when it can tell which move broke it, and marks a problem as assisted the moment you ask for help.
  • Only a fresh problem solved without help counts as independent — the evidence that actually predicts a real test.

What this covers

Foundations

Algebra basics

Equations & inequalities

Measurement & data

Applied arithmetic

Start free

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Questions

Can I practice TEAS math on Lemma?

Yes. The TEAS side has its own math track of 23 topics (ratios, percentages, unit conversion, algebra and more), checked step by step the same way, plus 15 interactive science lessons and drills. Reading passages are next.

How is Lemma different from asking ChatGPT to check my math?

A chatbot’s verdict on your step is a language model’s guess, and it will usually just give you the answer. In Lemma the verdict on every line comes from a computer algebra system. The AI tutor explains and hints but never grades, any help marks that problem as assisted, and only problems you solve on your own move you forward.

Do I need an account?

No. Pick ALEKS or TEAS and your first problem opens in about a minute. A cookie keeps your place in this browser, and Account inside the app gives you a link to open the same record on another device. A phone works; a tablet with a pencil is the best seat.

Is Lemma affiliated with ALEKS or the TEAS?

No. Lemma is independent practice. ALEKS is a registered trademark of McGraw Hill, and TEAS is a registered trademark of Assessment Technologies Institute (ATI).