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Chapter Summary

Percentage — Chapter Summary

ICSE · Class 5 · Mathematics

Summary of Percentage for ICSE Class 5 Mathematics. Key concepts: A percentage is a fraction, To convert a fraction to and To convert a decimal to.

133 questions25 flashcards11 formulas & key relations5 concepts

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Overview

In this chapter, we learn about percentages, which are a way of expressing a part of a whole out of 100. The word 'percent' means 'per hundred'. For example, if you score 85 out of 100 in a test, your score is 85%. Percentages help us compare different quantities easily and are used in everyday life

Key Concepts

A percentage is a fraction

A percentage is a fraction with 100 as the denominator. It is written with the symbol %. For example, 25% means 25 out of 100 or 25/100.

To convert a fraction to

To convert a fraction to a percentage, multiply it by 100 and add the % symbol. For example, 3/4 × 100 = 75%.

To convert a decimal to

To convert a decimal to a percentage, multiply it by 100 and move the decimal point two places to the right. For example, 0.6 = 60%.

To find a percentage of

To find a percentage of a number, convert the percentage to a fraction and multiply it by the number. For example, 20% of 80 = (20/100) × 80 = 16.

Divide the first quantity by

Divide the first quantity by the second and multiply by 100. For example, 20 out of 50 = (20/50) × 100 = 40%.

Learning Objectives

  • Understand what a percentage is and its meaning
  • Convert fractions and decimals into percentages and vice versa
  • Find the percentage of a given quantity
  • Express one quantity as a percentage of another
  • Solve word problems involving percentages

Frequently Asked Questions

What are the important topics in Percentage for ICSE Class 5 Mathematics?
Key topics in Percentage include Understanding Percentages, Converting Between Forms, Finding Percentage of a Quantity, Expressing One Quantity as Percentage of Another. Study these first, then practise questions on each for Class 5 exams.
How should I revise Percentage for Class 5 exams?
Learn the core ideas first, then work through the 133 practice questions on Percentage. 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.

More resources for Percentage

All ICSE Class 5 Mathematics Chapter Summary

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