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Chapter 2: Arithmetic Expressions Notes

Home / Class Notes / Class 7 / Mathematics / Chapter 2: Arithmetic Expressions
✓ Free notes Class 7 Mathematics 1 study file

About these notes

Class 7 Mathematics Chapter 2: Arithmetic Expressions provides clear notes that explain terms, coefficients, constants, like and unlike terms, evaluating expressions and operations (addition, subtraction and multiplication) with examples for quick revision. Main sub-topics: terms and coefficients, monomials/binomials/polynomials, collecting like terms, distributive law a(b + c) = ab + ac, multiplying monomials (for example (2x)(3x²) = 6x³), evaluation by substitution and taking out common factor (गुणक). Ideal for Class 7 CBSE and Bihar Board students preparing school exams; practise with chapter test, important questions and MCQ on Merit Spring ROH.

Key points you will learn

  • Class 7 Mathematics Chapter 2 Arithmetic Expressions notes — definitions: term, coefficient and constant
  • Like and unlike terms: combine only like terms, e.g. 3x + 5x = 8x
  • Distributive law: a(b + c) = ab + ac used to multiply polynomials
  • Multiply monomials: (2x)(3x²) = 6x³ and power rules for x², x³
  • Evaluate expressions by substitution, e.g. x² + 2x + 1 at x = 2 → 9
  • Take out common factor (गुणक) to simplify expressions, e.g. 3x + 6 = 3(x + 2)
  • Arrange polynomial terms in standard form by descending powers of x
  • Quick exam tip: watch signs (+/−) and collect like terms before final simplification

What is inside this chapter

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Arithmetic Expressions - Chapter 2 Notes (Class 7 Maths)

Class 7 Maths Arithmetic Expressions - Chapter 2 handwritten-style revision notes for CBSE and Bihar Board students.

📥 Open notes

Questions students ask

What is covered in Class 7 Maths Chapter 2 Arithmetic Expressions?

The chapter explains terms, coefficients and constants, like and unlike terms, simplifying by collecting like terms, evaluating expressions by substitution, and multiplying using the distributive law with worked examples and practice notes.

How to simplify algebraic expressions in this chapter?

Simplify by first collecting like terms, then apply the distributive law a(b + c) = ab + ac where needed and combine constants; for example reduce 2x + 4x − 3 + 5 to 6x + 2.

Where to find Class 7 Maths Chapter 2 notes and important questions?

Open the Class 7 Mathematics Chapter 2 page on Merit Spring ROH for the chapter notes; use the site’s chapter test and mock tests to practise important questions and MCQ and check your revision.

How to practise MCQ and short question answer for Arithmetic Expressions?

Memorise key definitions, practise quick substitution and collecting like terms, time yourself on MCQ sets, and review common sign errors; repeated practice builds speed and accuracy.

Difference between a term and a factor?

A term is a single part of an expression separated by + or − (like 3x or 5), while a factor (गुणक) is a quantity multiplied with another inside a term, for example in 3(x + 2) the 3 is a factor.

← Previous chapter Chapter 1: Large Numbers Around Us

More Mathematics chapters

Chapter 1: Large Numbers Around Us Chapter 3: A Peek Beyond the Point Chapter 4: Expressions Using Letter Numbers Chapter 5: Parallel and Intersecting Lines Chapter 6: Number Play Chapter 7: A Tale of Three Intersecting Lines All chapters →

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Science Social Science