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Arithmetic Expressions

CBSE · Class 7 · Mathematics

Quick revision notes for Arithmetic Expressions — CBSE Class 7 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

43 questions56 flashcards5 concepts

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Key Topics to Revise

1

1. Simple Expressions and Values

  • An arithmetic expression is a mathematical phrase formed with numbers and operations.
  • Every arithmetic expression has a value, which is the number it evaluates to.
  • The expression 13 plus 2 evaluates to 15.
2

2. Terms in Expressions

  • Terms are the parts of an expression separated by a + sign.
  • A minus sign must first be rewritten as + of the inverse to identify terms.
  • All subtractions in an expression must be converted to additions to identify the terms.
3

3. Swapping and Grouping Terms

  • In an expression with two terms, swapping the terms does not change the value.
  • Grouping the terms of an expression in different ways gives the same value.
  • Adding the terms of an expression in any order gives the same value.
4

4. Brackets and Order of Evaluation

  • When brackets are present, evaluate the expressions inside the brackets first.
  • Brackets help show the correct order of operations.
  • Without brackets, terms are used to decide the order of evaluation.

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Full Notes

Key Concepts

A mathematical phrase formed with numbersExpressions can be compared using =Terms are the parts ofSubtracting a number is the sameWhen brackets are present

Frequently Asked Questions

What are the important topics in Arithmetic Expressions for CBSE Class 7 Mathematics?
Arithmetic Expressions covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Arithmetic Expressions — CBSE Class 7 Mathematics?
Understand the core concepts first, then work through the 43 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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