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Bedrock Jul 9 - 15 25 questions
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Monday 13 July 2026

Keystones #28 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄12 + 1⁄12

    Answer: 7⁄12
  2. 2. Algebra

    Find the next term: 16, 25, 34, 43, ...

    Answer: 52
  3. 3. Geometry

    Opposite = 6cm, hypotenuse = 8.5cm. Find the angle

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

    Simplify the ratio 20:32

    Answer: 5:8
  5. 5. Statistics

    Find the mean of: 13, 13, 20

    Answer: 15.333333333333

Tuesday 14 July 2026

Keystones #29 · Five questions · Open this day only

  1. 1. Number

    Calculate: 45 + 29

    Answer: 45 + 29 = 74
  2. 2. Algebra

    Find the next term: 10, 12, 14, 16, ...

    Answer: 18
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 14.cm. Find the angle

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

    Calculate 25% of 163

    Answer: 40.75
  5. 5. Statistics

    Find the range of: 16, 19, 13, 15, 43

    Answer: 30

Wednesday 15 July 2026

Keystones #30 · Five questions · Open this day only

  1. 1. Number

    Calculate: 30 + 48

    Answer: 30 + 48 = 78
  2. 2. Algebra

    Simplify: 2x + 4x

    Answer: 6x
  3. 3. Geometry

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

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

    Simplify the ratio 32:16

    Answer: 2:1
  5. 5. Statistics

    Find the mean of: 4, 19, 18, 4, 10

    Answer: 11

Thursday 16 July 2026

Keystones #31 · Five questions · Open this day only

  1. 1. Number

    Calculate: 86 + 39

    Answer: 86 + 39 = 125
  2. 2. Algebra

    Solve: x + 10 = 14

    Answer: x = 4
  3. 3. Geometry

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

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

    Simplify the ratio 18:15

    Answer: 6:5
  5. 5. Statistics

    Find the mean of: 5, 17, 15, 12

    Answer: 12.25

Friday 17 July 2026

Keystones #32 · Five questions · Open this day only

  1. 1. Number

    Calculate: 16 + 35

    Answer: 16 + 35 = 51
  2. 2. Algebra

    Solve: x + 12 = 32

    Answer: x = 20
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 14.cm. Find the angle

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

    Simplify the ratio 16:14

    Answer: 8:7
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 1⁄2