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🧾 CBSE · Class 7

Class 7 Maths: Finding the Unknown Worksheet (with Answers)

A free, print-ready worksheet on Finding the Unknown for CBSE Class 7 Maths, with a matching answer key. Use the sample below, or build your own with the exact mix of questions you need — no login, no ads.

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Sample worksheet

7 of 17 questions from this chapter. Generate your own for the full set, more variations, and a clean print layout.

  1. 1. A statement that two expressions are equal is an:
    • (a) equation
    • (b) expression
    • (c) estimate
    • (d) inequality
  2. 2. Solve x + 4 = 9.
    • (a) x = 13
    • (b) x = 5
    • (c) x = 4
    • (d) x = 36
  3. 3. Solve 5x = 20.
    • (a) x = 100
    • (b) x = 15
    • (c) x = 4
    • (d) x = 25
  4. 4. The inverse operation of addition is:
    • (a) multiplication
    • (b) division
    • (c) squaring
    • (d) subtraction
  5. 5. What does it mean to solve an equation?
  6. 6. What is the inverse of multiplication?
  7. 7. Explain how to solve a simple equation by balancing, with an example.
View answers
  1. 1. (a) equation — It is an equation.
  2. 2. (b) x = 5 — Subtract 4: x = 5.
  3. 3. (c) x = 4 — Divide by 5: x = 4.
  4. 4. (d) subtraction — Subtraction undoes addition.
  5. 5. To find the value of the unknown that makes both sides equal.
  6. 6. Division.
  7. 7. An equation can be thought of as a balanced scale, where the two sides are equal. To keep it balanced while finding the unknown, we must do exactly the same operation to both sides, using inverse operations to undo what has been done to the variable. For example, to solve 2x + 1 = 11, we first subtract 1 from both sides to get 2x = 10, then divide both sides by 2 to get x = 5. Each step keeps the equation balanced while peeling away the operations around x, until x is left alone. Finally, we check by substituting x = 5 back: 2 × 5 + 1 = 11, which matches the right side.
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How it works

Every question is drawn from StudyMatic’s own Maths bank for Finding the Unknown — nothing is auto-generated or invented. Pick how many of each type you want, add your own questions if you like, choose 1–4 paper sets for anti-cheating, and print the worksheet and answer key separately or save them as PDF.

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FAQ

Is this Class 7 Maths worksheet on Finding the Unknown free?
Yes — it is completely free, with no login and no ads. You can print it or save it as a PDF, and generate unlimited variations.
Does the Finding the Unknown worksheet come with answers?
Yes. Every worksheet has a separate answer key with the correct answers, short explanations and marks, so it is ready for marking.
Can I choose how many questions and which types?
Yes. Open the generator for this chapter and set how many MCQs, short, long and HOTS questions you want; totals and marks update live, and you can swap any single question.
Which board and class is this for?
This worksheet is aligned to CBSE Class 7 Maths, chapter “Finding the Unknown”.