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Subtraction

ICSE · Class 1 · Mathematics

Complete topic list for Subtraction in ICSE Class 1 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

133 questions25 flashcards4 concepts

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3 Topics · ICSE Class 1 Mathematics

Topics in Subtraction

1

What is Subtraction?

  • Subtraction means taking away or removing things from a group.
  • We use the symbol '−' (minus) for subtraction.
  • The answer in subtraction is called the difference.
2

Methods of Subtraction

  • We can subtract by counting backward from the starting number.
  • We can use pictures or objects to cross out and count what is left.
  • For two-digit numbers, we subtract ones first, then tens.
3

Types of Subtraction Problems

  • Subtracting 1-digit numbers from 1-digit numbers (e.g., 8 − 3).
  • Subtracting 1-digit numbers from 2-digit numbers without borrowing (e.g., 45 − 2).
  • Subtracting 1-digit numbers from 2-digit numbers with borrowing (e.g., 32 − 7).

Key Concepts

Subtraction is taking away some itemsTo subtractWhen the top number in eachWhen the top number is smaller

Frequently Asked Questions

What are the important topics in Subtraction for ICSE Class 1 Mathematics?
Subtraction covers several key topics that are frequently asked in ICSE Class 1 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Subtraction — ICSE Class 1 Mathematics?
Understand the core concepts first, then work through the 133 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.

More resources for Subtraction

All 13 chapters — ICSE Class 1 Mathematics Syllabus

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