Mathematics

Circles

The most common mistakes Singapore primary students make in Circles, distilled from 64+ MOE-aligned questions across P6. Free practice at every level.

From the question bank

Top 5 mistakes in Circles

  1. #1Misconception

    Used C = πr instead of C = 2πr. Forgot the factor of 2.

    Seen in 1 question

  2. #2Misconception

    Used radius as if it were diameter: 2 × 22/7 × 14 = 88.

    Seen in 1 question

  3. #3Misconception

    Computed AREA (πr² = 154) instead of circumference.

    Seen in 1 question

  4. #4Misconception

    Used the path width 7 as a circle radius: π x 7² = 22/7 x 49 = 154 m².

    Seen in 1 question

  5. #5Misconception

    Computed the AREA OF THE POND only: π x 14² = 22/7 x 196 = 616 m², treating that as the path area.

    Seen in 1 question

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