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Mathematics Concepts Flashcards

6 cards from real PSLE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Mathematics Concepts flashcards as text

  1. What is the net of a cube made up of?

    Answer: 6 squares

    A cube has 6 faces, so its net is made up of 6 squares arranged in a cross or T-shape pattern.

  2. Which of the following is a composite number?

    Answer: 15

    15 is composite because it has factors other than 1 and itself (3 × 5 = 15). The others are prime.

  3. What is the sum of interior angles of a triangle?

    Answer: 180°

    The three interior angles of any triangle always add up to 180°.

  4. Simplify the ratio 36:48.

    Answer: 3:4

    Divide both by HCF (12): 36 ÷ 12 = 3, 48 ÷ 12 = 4. Simplified ratio is 3:4.

  5. What is the volume of a cube with side length 5 cm?

    Answer: 125 cm³

    Volume of a cube = side³ = 5³ = 5 × 5 × 5 = 125 cm³.

  6. Convert 2 3/5 to an improper fraction.

    Answer: 13/5

    2 3/5 = (2 × 5 + 3)/5 = 13/5.

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