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Decimal Fractions

ICSE · Class 6 · Mathematics

Quick revision notes for Decimal Fractions — ICSE Class 6 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

117 questions30 flashcards5 concepts

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Key Topics to Revise

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1. Understanding Decimal Fractions

  • A decimal fraction is a fraction whose denominator is 10 or a power of 10 (like 100, 1000, etc.).
  • Instead of writing the denominator, we use a decimal point to show the value.
  • For example: $\frac{7}{10} = 0.7$, $\frac{25}{100} = 0.25$
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2. Like and Unlike Decimal Numbers

  • Like decimals have the same number of decimal places.
  • Unlike decimals have different numbers of decimal places.
  • Unlike decimals can be converted into like decimals by adding zeros at the end of the decimal part.
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3. Converting Fractions to Decimals

  • If the denominator is 10, 100, 1000, etc., count the zeros and place the decimal point accordingly.
  • If the denominator is not a power of 10, multiply numerator and denominator by a suitable number to make it so.
  • Example: $\frac{3}{4} = \frac{3 \times 25}{4 \times 25} = \frac{75}{100} = 0.75$
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4. Arithmetic Operations with Decimals

  • Always convert unlike decimals to like decimals before addition or subtraction.
  • Line up decimal points vertically during addition and subtraction.
  • In multiplication, total decimal places in answer = sum of decimal places in both numbers.

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Full Notes

Key Concepts

A fraction whose denominator is 10The number of digits afterLike decimals have the same numberWe can addDecimals are used in expressing money

Frequently Asked Questions

What are the important topics in Decimal Fractions for ICSE Class 6 Mathematics?
Decimal Fractions covers several key topics that are frequently asked in ICSE Class 6 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Decimal Fractions — ICSE Class 6 Mathematics?
Understand the core concepts first, then work through the 117 practice questions available for this chapter. Revise formulas and 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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