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Bedrock Jul 9 - 15 25 questions
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Monday 6 July 2026

Keystones #21 · Five questions · Open this day only

  1. 1. Number

    Calculate: -5 + (-1)

    Answer: -6
  2. 2. Algebra

    Simplify: 3x + 5x

    Answer: 8x
  3. 3. Geometry

    Opposite = 6cm, hypotenuse = 6.9cm. Find the angle

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

    Simplify the ratio 15:9

    Answer: 5:3
  5. 5. Statistics

    Find the mean of: 20, 14, 6

    Answer: 13.333333333333

Tuesday 7 July 2026

Keystones #22 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Simplify: 7x + 2x

    Answer: 9x
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

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

    Simplify the ratio 12:28

    Answer: 3:7
  5. 5. Statistics

    Find the mean of: 19, 8, 11, 17

    Answer: 13.75

Wednesday 8 July 2026

Keystones #23 · Five questions · Open this day only

  1. 1. Number

    Calculate: 62 + 79

    Answer: 62 + 79 = 141
  2. 2. Algebra

    Simplify: 7x + 2x

    Answer: 9x
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 12.7cm. Find the angle

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

    Simplify the ratio 24:12

    Answer: 2:1
  5. 5. Statistics

    Find the mean of: 20, 19, 20

    Answer: 19.666666666667

Thursday 9 July 2026

Keystones #24 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3.2 + 6.9

    Answer: 3.2 + 6.9 = 10.1
  2. 2. Algebra

    Find the next term: 26, 33, 40, 47, ...

    Answer: 54
  3. 3. Geometry

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

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

    Simplify the ratio 15:12

    Answer: 5:4
  5. 5. Statistics

    Find the median of: 14, 16, 15, 14, 16

    Answer: 15

Friday 10 July 2026

Keystones #25 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 2⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: x + 9 = 27

    Answer: x = 18
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

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

    Simplify the ratio 9:6

    Answer: 3:2
  5. 5. Statistics

    Find the mean of: 11, 17, 12, 12

    Answer: 13