Mathematics

Shapes and Patterns

The most common mistakes Singapore primary students make in Shapes and Patterns, distilled from 54+ MOE-aligned questions across P1, P2. Free practice at every level.

From the question bank

Top 10 mistakes in Shapes and Patterns

  1. #1Misconception

    Circle has no sides.

    Seen in 2 questions

  2. #2Partial logic

    You may have skipped one of the shapes. Re-add: triangle (3) + rectangle (4) + pentagon (5) + square (4) = 16.

    Seen in 1 question

  3. #3Calc error

    You may have used pentagon as 3 sides (like a triangle) by mistake. A pentagon has 5 sides.

    Seen in 1 question

  4. #4Misconception

    You may have used 6 for the pentagon (treated it like a hexagon). A pentagon has 5 sides, not 6.

    Seen in 1 question

  5. #5Misconception

    4 equal sides, but angles not always right angles.

    Seen in 1 question

  6. #6Misconception

    360° is the angle sum of a quadrilateral. A hexagon's interior angles sum to 720°.

    Seen in 1 question

  7. #7Misconception

    That describes a pentagon. A hexagon has SIX sides.

    Seen in 1 question

  8. #8Misconception

    That describes a square or rhombus. 'Hexa-' means six.

    Seen in 1 question

  9. #9Misconception

    6 faces but rectangles, not all square.

    Seen in 1 question

  10. #10Misconception

    5 faces (1 square base + 4 triangles).

    Seen in 1 question

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