Free Year 9 NAPLAN Numeracy Practice Questions

Year 9 is the final NAPLAN test. The numeracy section covers real numbers, linear and non-linear relationships, financial mathematics, measurement, Pythagoras theorem and statistical analysis. Skillo has hundreds of curriculum-aligned practice questions, free and ready to go.

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What’s tested in Year 9 NAPLAN Numeracy

  • ✓Number — real numbers, indices and scientific notation
  • ✓Algebra — linear equations, inequalities and graphs
  • ✓Financial mathematics — interest, tax and budgeting
  • ✓Measurement — Pythagoras theorem and surface area
  • ✓Geometry — congruence, similarity and transformations
  • ✓Statistics — data analysis, sampling and probability

Sample questions

Question 1 — Easy

Tom is painting a triangular mural on a wall. The triangle has a base of 14 m and a height of 6 m. Use the formula for the area of a triangle to find its area.

A) 84 m²
B) 48 m²
C) 20 m²
D) 42 m²

Answer: The area of a triangle is A = ½ × base × height = ½ × 14 × 6 = 42 m². Option A forgets the ½ and gives base × height. Option C adds the base and height. Option D uses an incorrect calculation of ½ × base × height with a different height.

Question 2 — Medium

Luca is saving to buy a drone. He has $320 and saves an additional $55 per week. The drone costs $760. After how many complete weeks of saving will Luca be able to buy the drone?

A) 7 weeks
B) 6 weeks
C) 9 weeks
D) 8 weeks

Answer: Amount still needed = $760 − $320 = $440. Weeks needed = $440 ÷ $55 = 8 weeks exactly. After 8 complete weeks, Luca has exactly $760.

Question 3 — Hard

Zac is tiling a bathroom floor that measures 3.6 m by 2.4 m. He uses square tiles with a side length of 30 cm. Tiles are sold in boxes of 20. How many boxes does Zac need to buy?

A) 4 boxes
B) 7 boxes
C) 6 boxes
D) 5 boxes

Answer: Floor area = 3.6 × 2.4 = 8.64 m² = 86 400 cm². Tile area = 30 × 30 = 900 cm². Number of tiles = 86 400 ÷ 900 = 96 tiles. Boxes needed = 96 ÷ 20 = 4.8, so 5 boxes must be purchased.

How to use Skillo for Year 9 Numeracy

  1. Select Year 9 and Numeracy on the home screen
  2. Use Quick Practice for targeted revision before the test
  3. Use the Full Test for a full timed NAPLAN simulation
  4. Check your Skill Breakdown to focus on your weakest areas

Skillo is free, requires no email or account details, and is built specifically for Australian students. Every question is mapped to the Australian Curriculum v9.0.

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