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Turn your class 10 real numbers notes into a concept map

Upload your NCERT chapter PDF or handwritten notes and get an editable, explorable mind map of the whole chapter.

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Why a concept map helps with real numbers

Class 10 real numbers ties together Euclid's division lemma, the Fundamental Theorem of Arithmetic, HCF and LCM, irrational numbers, and decimal expansions. Turn your notes into a class 10 real numbers concept map and you can see how these ideas depend on each other before the exam.

Shows the dependency between lemma, FTA, and HCF and LCM
Groups irrational number proofs under one branch
Keeps decimal expansion rules next to the prime factor idea
Lets you edit branches to match your teacher's order

Example class 10 real numbers concept map branches

Euclid's division lemmaa = bq + r · 0 ≤ r < b · Used to find HCF by repeated division

Fundamental Theorem of ArithmeticEvery composite number is a product of primes · The factorization is unique apart from order · Used to find HCF and LCM

HCF and LCMHCF × LCM = product of the two numbers · HCF takes the lowest power of each common prime · LCM takes the highest power of each prime

Irrational numbers√2, √3, and √5 cannot be written as p/q · Proofs use contradiction · Rational plus irrational is always irrational

Decimal expansionsTerminating if the reduced denominator has only factors 2 and 5 · Otherwise non-terminating repeating · Check the prime factors of q

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Branches you can edit

Rename, move, or delete any branch so the map matches how your teacher covers the chapter.

Explore by clicking

Expand a topic like Euclid's division lemma to see its steps and worked links without leaving the map.

Built from your material

The map comes from your own PDF or notes, so it reflects your syllabus rather than a generic template.

How it works

Upload your chapter

Add a PDF, DOCX, PPTX, plain text notes, or a photo of the textbook page.

Generate the map

DeckOwl reads the material and organizes the main ideas into a branching mind map.

Edit and study

Adjust the branches, then review them in the browser or export when you are on a paid plan.

Seeing the links matters because a proof about √2 uses the same contradiction logic as other irrationality proofs, and the decimal rule depends on prime factors of the denominator. A branching map keeps those connections visible instead of spread across pages.

Start from your own chapter PDF or notes so the branches follow your syllabus. Then test yourself on each branch with flashcards or a quiz.

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Frequently asked questions

How do I study the real numbers chapter for class 10?

Start with Euclid's division lemma and the Fundamental Theorem of Arithmetic, since HCF, LCM, and many proofs rely on them. Then practice prime factorization and the decimal expansion rule until you can apply each one to new numbers.

Why does 1/8 have a terminating decimal but 1/6 does not?

Once fully reduced, p/q has a terminating decimal only when q has no prime factors other than 2 and 5. Since 8 = 2 × 2 × 2, 1/8 terminates, while 6 = 2 × 3 includes a 3, so 1/6 is non-terminating repeating.

Can I export my real numbers concept map?

Exports are a paid feature. Plus is $39/year or $7.99/month and includes PDF and DOCX export, while the free plan lets you study in the browser only.

Is there a free plan to try this?

Yes, the free plan includes 3 generations per month and browser study. No credit card is needed to start, and students get 40% off with a school email.

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