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Percent and Percentage

ICSE · Class 8 · Mathematics

Complete topic list for Percent and Percentage in ICSE Class 8 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

82 questions24 flashcards5 concepts

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4 Topics · ICSE Class 8 Mathematics

Topics in Percent and Percentage

1

1. Core Meaning and Basic Conversions

  • Percent means for every hundred and is written as % or p.c.
  • A percentage is a fraction whose denominator is 100.
  • The numerator of a percentage is called the rate percent.
2

2. Finding Percent, Whole, and Part

  • Direct method finds percent directly using part ÷ whole × 100%.
  • Alternative method often sets x% of a value equal to the given part.
  • The same problem can often be solved in more than one valid way.
3

3. Percentage Increase, Decrease, and Change

  • Increase % and decrease % are based on the original quantity.
  • Percentage change is change on 100, always measured relative to the original value.
  • If a number is decreased by x%, the new number equals (100 - x)/100 of the original.
4

4. Depreciation

  • Depreciation means yearly reduction in value by a fixed percent.
  • Depreciation is calculated on the value at the beginning of each year.
  • For the first year, subtract the depreciation from the present value.

Key Concepts

Central concept: Percent and Percentage

PercentPercentageConversion between formsFinding percent of a quantityIncrease and decrease percentSolved percent problemsDepreciationSuccessive percentage change

Frequently Asked Questions

What are the important topics in Percent and Percentage for ICSE Class 8 Mathematics?
Percent and Percentage covers several key topics that are frequently asked in ICSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Percent and Percentage — ICSE Class 8 Mathematics?
Understand the core concepts first, then work through the 82 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 25 chapters — ICSE Class 8 Mathematics Syllabus

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