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Bedrock Jun 11 - 17 25 questions
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Monday 8 June 2026

Keystones #159 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 3⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Find the next term: 15, 23, 31, 39, ...

    Answer: 47
  3. 3. Geometry

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

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

    Calculate 10% of 28

    Answer: 2.8
  5. 5. Statistics

    Find the mean of: 20, 13, 6

    Answer: 13

Tuesday 9 June 2026

Keystones #160 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1 + 10

    Answer: 11
  2. 2. Algebra

    Factorise: 15x + 6

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

    Opposite = 11cm, hypotenuse = 22cm. Find the angle

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

    Simplify the ratio 32:12

    Answer: 8:3
  5. 5. Statistics

    Find the mean of: 16, 17, 12, 6, 18

    Answer: 13.8

Wednesday 10 June 2026

Keystones #161 · Five questions · Open this day only

  1. 1. Number

    Calculate: 22 + 44

    Answer: 22 + 44 = 66
  2. 2. Algebra

    Simplify: 3x + 8x

    Answer: 11x
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

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

    Simplify the ratio 20:35

    Answer: 4:7
  5. 5. Statistics

    Find the mean of: 20, 8, 10, 5

    Answer: 10.75

Thursday 11 June 2026

Keystones #162 · Five questions · Open this day only

  1. 1. Number

    Calculate: 78 + 76

    Answer: 78 + 76 = 154
  2. 2. Algebra

    Solve: x + 3 = 6

    Answer: x = 3
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 9.9cm. Find the angle

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

    In ratio 3:1, the difference between shares is 22. What are the shares?

    Answer: 33 and 11
  5. 5. Statistics

    Find the mean of: 2, 12, 11, 11

    Answer: 9

Friday 12 June 2026

Keystones #163 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 2⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Simplify: 5x + 2x

    Answer: 7x
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

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

    Calculate 25% of 37

    Answer: 9.25
  5. 5. Statistics

    Find the mean of: 6, 10, 20, 17

    Answer: 13.25