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Number System — Study Plan

ICSE · Class 6 · Mathematics

A step-by-step study plan for Number System, ICSE Class 6 Mathematics: what to learn first, what to practise and when to revise.

90 questions28 flashcards4 formulas & key relations5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: 1. Digits and Numbers, 2. Place Value and Face Value, 3. Comparing Numbers.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 90 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Number System after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Face value is the value of the digit itself.
  • Place value depends on the position of the digit in the number.
  • Place value = digit × place (like 1000, 100, 10, etc.).
  • More digits means a larger number.
  • If digits are equal, compare from left to right.
  • The first differing digit decides the greater number.
  • A number cannot start with 0.
  • For smallest number with 0, place the smallest non-zero digit first.
  • For greatest number, place digits in descending order.

Common Mistakes to Avoid

Zero has no place value, so it doesn’t affect the number.

The face value and place value of a digit are the same.

When forming the smallest number from digits including 0, we start with 0.

Memory Tips

Digits in Number System

Place Value vs Face Value

Forming Smallest Number with Zero

Rounding to Nearest 10

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Frequently Asked Questions

What are the important topics in Number System for ICSE Class 6 Mathematics?
Key topics in Number System include Digits and Numbers, Place Value and Face Value, Comparing Numbers, Forming Greatest and Smallest Numbers. Study these first, then practise questions on each for Class 6 exams.
How should I revise Number System for Class 6 exams?
Learn the core ideas first, then work through the 90 practice questions on Number System. 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 Number System

All ICSE Class 6 Mathematics Study Plan

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