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Bedrock Mar 5 - 11 25 questions
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Monday 9 March 2026

Keystones #68 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Simplify: 9x + 4x

    Answer: 13x
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 19.8cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Simplify the ratio 30:25

    Answer: 6:5
  5. 5. Statistics

    Find the mean of: 3, 9, 13

    Answer: 8.3333333333333

Tuesday 10 March 2026

Keystones #69 · Five questions · Open this day only

  1. 1. Number

    Calculate: 67 + 77

    Answer: 67 + 77 = 144
  2. 2. Algebra

    Simplify: 8x + 2x

    Answer: 10x
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 6:8

    Answer: 3:4
  5. 5. Statistics

    What is the probability of rolling a 4 on a fair die?

    Answer: 1⁄6

Wednesday 11 March 2026

Keystones #70 · Five questions · Open this day only

  1. 1. Number

    Calculate: 19 + 43

    Answer: 19 + 43 = 62
  2. 2. Algebra

    Find the midpoint of (2, 8) and (10, 15)

    Answer: (6, 11.5)
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 15:9

    Answer: 5:3
  5. 5. Statistics

    Find the mean of: 2, 5, 19, 17

    Answer: 10.75

Thursday 12 March 2026

Keystones #71 · Five questions · Open this day only

  1. 1. Number

    Calculate: 65 + 70

    Answer: 65 + 70 = 135
  2. 2. Algebra

    Find the next term: 20, 26, 32, 38, ...

    Answer: 44
  3. 3. Geometry

    Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Calculate 25% of 178

    Answer: 44.5
  5. 5. Statistics

    Find the mean of: 18, 11, 19, 18

    Answer: 16.5

Friday 13 March 2026

Keystones #72 · Five questions · Open this day only

  1. 1. Number

    Calculate: 25 + 15

    Answer: 25 + 15 = 40
  2. 2. Algebra

    Factorise: 15x + 6

    Answer: 3(5x + 2)
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 18cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 9:6

    Answer: 3:2
  5. 5. Statistics

    Find the mean of: 17, 7, 3, 7, 11

    Answer: 9