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Decimal Fractions

ICSE · Class 5 · Mathematics

Complete topic list for Decimal Fractions in ICSE Class 5 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

104 questions25 flashcards5 concepts

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4 Topics · ICSE Class 5 Mathematics

Topics in Decimal Fractions

1

Understanding Decimal Fractions

  • A decimal fraction has a denominator of 10, 100, 1000, etc.
  • It is written with a decimal point (.) separating the whole number and the fractional part.
  • Digits after the decimal point are read one by one (e.g., 0.25 is 'zero point two five').
2

Place Value and Expanded Form

  • Each digit in a decimal number has a place value: Thousands, Hundreds, Tens, Ones, Tenths, Hundredths, Thousandths.
  • The decimal point separates the whole number part from the decimal part.
  • Expanded form breaks down a decimal number into the sum of the value of each digit.
3

Types of Decimal Fractions

  • Like decimals: Have the same number of digits after the decimal point.
  • Unlike decimals: Have different number of digits after the decimal point.
  • Equivalent decimals: Have the same value even if the number of digits differs (e.g., 0.5 = 0.50 = 0.500).
4

Comparing and Rounding Off Decimals

  • To compare decimals, first compare the whole number part. If they are equal, compare the tenths, then hundredths, and so on.
  • Rounding to nearest whole number: Look at tenths digit. If <5, keep whole number same; if ≥5, add 1.
  • Rounding to nearest tenth: Look at hundredths digit. If <5, keep tenths digit same; if ≥5, add 1 to tenths digit.

Key Concepts

Central concept: Decimal Fractions

Definition of Decimal FractionsPlace ValueExpanded FormTypes of Decimal FractionsComparison of DecimalsConversionRounding Off DecimalsOperations on Decimals

Frequently Asked Questions

What are the important topics in Decimal Fractions for ICSE Class 5 Mathematics?
Decimal Fractions covers several key topics that are frequently asked in ICSE Class 5 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 5 Mathematics?
Understand the core concepts first, then work through the 104 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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All 22 chapters — ICSE Class 5 Mathematics Syllabus

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