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Rational Numbers — Flashcards

ICSE · Class 7 · Mathematics

28 flashcards for Rational Numbers (ICSE Class 7 Mathematics) to test yourself on key terms and facts. Sample: "Solve: Is 8 ÷ 5 an integer?"

39 questions28 flashcards6 formulas & key relations5 concepts

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A nested Venn diagram illustrating the relationships between natural numbers (N), integers (Z), rational numbers (Q), and real numbers (R) as subsets of each other.
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28 Flashcards·
Introduction to rational numbersRational numbers as fractionsStandard formTypes of rational numbersComparing rational numbers
Card 1Introduction to rational numbers

Solve: Is 8 ÷ 5 an integer?

Answer

Step 1: Divide 8 by 5. Step 2: 8 ÷ 5 = 8/5. Step 3: 8/5 is a fraction, not an integer. Answer: No, 8 ÷ 5 is not an integer.

Card 2Rational numbers as fractions

Write 5 as a rational number in fraction form.

Answer

Step 1: Any integer can be written with denominator 1. Step 2: 5 = 5/1. Answer: 5/1.

Card 3Standard form

Check whether 3/4 is in standard form.

Answer

Step 1: The denominator must be positive. Step 2: 4 is positive. Step 3: 3 and 4 have no common factor other than 1. Answer: Yes, 3/4 is in standard form.

Card 4Standard form

Check whether 15/24 is in standard form.

Answer

Step 1: The denominator is positive. Step 2: Check common factors of 15 and 24. Step 3: Both are divisible by 3. Answer: No, 15/24 is not in standard form.

Card 5Types of rational numbers

Classify 45/17, -23/-16, -56/-115, and 125/325 as positive, negative, or zero rational numbers.

Answer

Step 1: 45/17 has same signs in numerator and denominator, so it is positive. Step 2: -23/-16 has same signs, so it is positive. Step 3: -56/-115 has same signs, so it is positive. Step 4: 125/325 has…

Card 6Types of rational numbers

Classify -5/7, 8/-11, 15/-13, and -23/25.

Answer

Step 1: -5/7 has opposite signs, so it is negative. Step 2: 8/-11 has opposite signs, so it is negative. Step 3: 15/-13 has opposite signs, so it is negative. Step 4: -23/25 has opposite signs, so it …

Card 7Types of rational numbers

Is 0 a positive rational number, negative rational number, or neither?

Answer

Step 1: 0 is a rational number. Step 2: It is not positive. Step 3: It is not negative. Answer: 0 is neither positive nor negative.

Card 8Comparing rational numbers

Compare 5/7 and -3/5.

Answer

Step 1: 5/7 is positive. Step 2: -3/5 is negative. Step 3: Every positive rational number is greater than every negative rational number. Answer: 5/7 > -3/5.

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Frequently Asked Questions

What are the important topics in Rational Numbers for ICSE Class 7 Mathematics?
Key topics in Rational Numbers include What Rational Numbers Are, Number Line Representation and Comparison, Finding Rational Numbers Between Two Given Numbers, Addition and Subtraction of Rational Numbers. Study these first, then practise questions on each for Class 7 exams.
How many flashcards are available for Rational Numbers?
There are 28 flashcards for Rational Numbers covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Rational Numbers for Class 7 exams?
Learn the core ideas first, then work through the 39 practice questions on Rational 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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