Skip to main content
Chapter 14 of 15
Syllabus

Finding the Unknown — Syllabus

CBSE · Class 7 · Mathematics

What Finding the Unknown covers in CBSE Class 7 Mathematics: 4 topics, for the 2026-27 session. Part of the CBSE Class 7 Mathematics syllabus.

73 questions66 flashcards8 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Finding the Unknown? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for syllabus and more.

Free trial, no card needed.

4 Topics · CBSE Class 7 Mathematics · 2026-27

Topics in Finding the Unknown

1

1. Unknowns, Equations, and Balance

  • An equation is a statement of equality between two algebraic expressions.
  • Solving an equation means finding the letter-number value that makes the left-hand side equal to the right-hand side.
  • A balanced weighing scale is a useful model for equations.
2

2. Patterns and Formulas

  • A pattern can often be described using a formula.
  • The nth position of the matchstick sequence has 2n + 1 matchsticks.
  • This formula helps find the position when the number of matchsticks is given.
3

3. Word Problems with One Unknown

  • A real-life situation can be translated into an equation.
  • Madhubanti’s party problem can be solved by subtracting the fixed delivery charge first, then dividing by the cost per plate.
  • Madhubanti can invite 13 friends.
4

4. Two Unknowns and Simultaneous Thinking

  • Some problems involve two unknown quantities.
  • Ramesh and Suresh have 60 marbles altogether.
  • Ramesh has 30 more marbles than Suresh.

Key Concepts

Central concept: Finding unknown quantities using equations, patterns, and systematic methods

Unknown weight problemsMatchstick patternsEquationSystematic solving of equationsProblem solving with one unknownProblem solving with two unknownsAncient Indian algebraHistory of algebra

Work through every topic in Finding the Unknown with notes and quizzes

Start This Chapter

Frequently Asked Questions

What are the important topics in Finding the Unknown for CBSE Class 7 Mathematics?
Key topics in Finding the Unknown include Unknowns, Equations, and Balance, Patterns and Formulas, Word Problems with One Unknown, Two Unknowns and Simultaneous Thinking. Study these first, then practise questions on each for Class 7 exams.
How should I revise Finding the Unknown for Class 7 exams?
Learn the core ideas first, then work through the 73 practice questions on Finding the Unknown. 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.

For serious students

Get the full Finding the Unknown chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for CBSE Class 7 Mathematics. Free to start, no card needed.