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Mathematics Flashcards

6 cards from real N-LEVEL 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 flashcards as text
  1. What is the volume of a cube with side length 3 cm?

    Answer: 27 cm³

    Volume = side³ = 3³ = 3 × 3 × 3 = 27 cm³.

  2. An item costs $120 after a 20% discount. What was the original price?

    Answer: $150

    If 80% of original = $120, then original = 120 ÷ 0.8 = $150.

  3. Plot the point (3, -2) on a Cartesian plane. Which quadrant is it in?

    Answer: Fourth quadrant

    (3, -2): x is positive and y is negative. This is the fourth quadrant (bottom right).

  4. Solve: x/3 = 5

    Answer: x = 15

    Multiply both sides by 3: x = 5 × 3 = 15.

  5. What is 2.45 rounded to 1 decimal place?

    Answer: 2.5

    Look at the second decimal place: 5. Since it is 5 or more, round up the first decimal place: 2.5.

  6. What type of angle is 135°?

    Answer: Obtuse

    An obtuse angle is between 90° and 180°. Since 135° is between 90° and 180°, it is obtuse.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. go.gov.sg — Eligibility, fees, test delivery, time limit · verified Oct 2026
  2. ask.gov.sg — Retake policy · verified Oct 2026
  3. seab.gov.sg — Score release, passing score · verified Oct 2026