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Playing with Numbers — Flashcards

ICSE · Class 6 · Mathematics

30 flashcards for Playing with Numbers (ICSE Class 6 Mathematics) to test yourself on key terms and facts. Sample: "Simplify: 18 - 4 × 3 + 6"

50 questions30 flashcards2 formulas & key relations5 concepts

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30 Flashcards·
Simplification using BODMASSimplification using BracketsFactorsPrime NumbersPrime Factors
Card 1Simplification using BODMAS

Simplify: 18 - 4 × 3 + 6

Answer

Step 1: Apply BODMAS — Multiplication first → 4 × 3 = 12<br>Step 2: Replace in expression → 18 - 12 + 6<br>Step 3: Perform subtraction and addition from left to right → (18 - 12) + 6 = 6 + 6 = 12<br>A…

Card 2Simplification using BODMAS

Simplify: 30 ÷ 6 + 4 × 2 - 5

Answer

Step 1: Division → 30 ÷ 6 = 5<br>Step 2: Multiplication → 4 × 2 = 8<br>Step 3: Replace → 5 + 8 - 5<br>Step 4: Left to right → (5 + 8) - 5 = 13 - 5 = 8<br>Answer: 8…

Card 3Simplification using BODMAS

Simplify: (15 + 5) of 2 ÷ 4

Answer

Step 1: Solve bracket → 15 + 5 = 20<br>Step 2: 'Of' means multiplication → 20 of 2 = 20 × 2 = 40<br>Step 3: Division → 40 ÷ 4 = 10<br>Answer: 10…

Card 4Simplification using Brackets

Simplify: 24 - [10 - {6 + (8 - 4)}]

Answer

Step 1: Innermost bracket → (8 - 4) = 4<br>Step 2: Curly bracket → {6 + 4} = 10<br>Step 3: Square bracket → [10 - 10] = 0<br>Step 4: Final → 24 - 0 = 24<br>Answer: 24…

Card 5Simplification using Brackets

Simplify: 40 - [18 - {10 + 6 ÷ (2 - 1)}]

Answer

Step 1: (2 - 1) = 1<br>Step 2: 6 ÷ 1 = 6<br>Step 3: {10 + 6} = 16<br>Step 4: [18 - 16] = 2<br>Step 5: 40 - 2 = 38<br>Answer: 38…

Card 6Factors

List all factors of 36.

Answer

To find factors, check numbers from 1 to 36 that divide 36 exactly:<br>1 × 36 = 36<br>2 × 18 = 36<br>3 × 12 = 36<br>4 × 9 = 36<br>6 × 6 = 36<br>So, factors are: 1, 2, 3, 4, 6, 9, 12, 18, 36…

Card 7Prime Numbers

Which of these are prime numbers: 17, 21, 29, 33, 41?

Answer

Prime numbers have only two factors: 1 and itself.<br>• 17 → factors: 1, 17 → Prime<br>• 21 → 1, 3, 7, 21 → Not prime<br>• 29 → 1, 29 → Prime<br>• 33 → 1, 3, 11, 33 → Not prime<br>• 41 → 1, 41 → Prime…

Card 8Prime Factors

Find the prime factors of 48.

Answer

Step 1: Divide 48 by smallest prime 2 → 48 ÷ 2 = 24<br>Step 2: 24 ÷ 2 = 12<br>Step 3: 12 ÷ 2 = 6<br>Step 4: 6 ÷ 2 = 3<br>Step 5: 3 ÷ 3 = 1<br>So, 48 = 2 × 2 × 2 × 2 × 3 = 2⁴ × 3<br>Prime factors: 2 an…

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Frequently Asked Questions

What are the important topics in Playing with Numbers for ICSE Class 6 Mathematics?
Key topics in Playing with Numbers include Simplification Using Brackets and BODMAS, Even and Odd Numbers, Factors and Multiples, H.C.F. and L.C.M.. Study these first, then practise questions on each for Class 6 exams.
How many flashcards are available for Playing with Numbers?
There are 30 flashcards for Playing with Numbers covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Playing with Numbers for Class 6 exams?
Learn the core ideas first, then work through the 50 practice questions on Playing with Numbers. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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