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Lintel Jan 1 - 7 25 questions
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Monday 17 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 16 + 67

    Answer: 4342
  2. 2. Algebra

    Simplify: 12x - 6x + 10y - 8y

    Answer: 6x + 2y
  3. 3. Geometry

    Opposite = 14cm, adjacent = 15cm. Calculate the angle

    Answer: 43°
  4. 4. Ratio

    Simplify: 20:16:20

    Answer: 5:4:5
  5. 5. Statistics

    A spinner has 6 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 38

Tuesday 18 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is ∛8?

    Answer: 2
  2. 2. Algebra

    Factorise fully: 25x² + 30x

    Answer: 5x(5x + 6)
  3. 3. Geometry

    Calculate the distance between (10, 4) and (13, 8)

    Answer: 5
  4. 4. Ratio

    Find 23% of 488

    Answer: 112.24
  5. 5. Statistics

    Find the range of: -14, -14, 33, 33, 3

    Answer: 47

Wednesday 19 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: (-18) + (-23) + (-19)

    Answer: -60
  2. 2. Algebra

    What is the next term? 8, 32, 128, 512, ...

    Answer: 2048
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 25cm. Find the angle

    Answer: 36.9°
  4. 4. Ratio

    Find 21% of 387

    Answer: 81.27
  5. 5. Statistics

    A bag has 3 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 37

Thursday 20 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is ∛64?

    Answer: 4
  2. 2. Algebra

    Solve: 9x = 36

    Answer: x = 4
  3. 3. Geometry

    Opposite = 12cm, adjacent = 12cm. Calculate the angle

    Answer: 45°
  4. 4. Ratio

    Simplify: 12:16:16

    Answer: 3:4:4
  5. 5. Statistics

    Find the range of: -25, -19, 48, -10, 50

    Answer: 75

Friday 21 March 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 732

    Answer: 1729
  2. 2. Algebra

    Solve: x4 = 6.5

    Answer: x = 26
  3. 3. Geometry

    Adjacent = 26cm, hypotenuse = 33cm. Find the angle

    Answer: 38°
  4. 4. Ratio

    Find 53% of 142

    Answer: 75.26
  5. 5. Statistics

    A bag has 8 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 47