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Bedrock Jan 15 - 21 25 questions
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Monday 12 January 2026

Keystones #12 · Five questions · Open this day only

  1. 1. Number

    List the first 5 multiples of 6

    Answer: 6, 12, 18, 24, 30
  2. 2. Algebra

    Find the next term: 9, 18, 27, 36, ...

    Answer: 45
  3. 3. Geometry

    Opposite = 12cm, hypotenuse = 17cm. Find the angle

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

    Simplify the ratio 20:28

    Answer: 5:7
  5. 5. Statistics

    Find the mean of: 3, 8, 4, 4, 18

    Answer: 7.4

Tuesday 13 January 2026

Keystones #13 · Five questions · Open this day only

  1. 1. Number

    Calculate: -10 + 8

    Answer: -2
  2. 2. Algebra

    Simplify: 9x + 2x

    Answer: 11x
  3. 3. Geometry

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

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

    Simplify the ratio 25:20

    Answer: 5:4
  5. 5. Statistics

    Find the mean of: 7, 4, 19

    Answer: 10

Wednesday 14 January 2026

Keystones #14 · Five questions · Open this day only

  1. 1. Number

    Calculate: 32 + 16

    Answer: 32 + 16 = 48
  2. 2. Algebra

    Find the next term: 20, 30, 40, 50, ...

    Answer: 60
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

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

    Simplify the ratio 28:12

    Answer: 7:3
  5. 5. Statistics

    What is the probability of rolling a 1 on a fair die?

    Answer: 1⁄6

Thursday 15 January 2026

Keystones #15 · Five questions · Open this day only

  1. 1. Number

    Calculate: 22 + 31

    Answer: 22 + 31 = 53
  2. 2. Algebra

    Find the next term: 23, 30, 37, 44, ...

    Answer: 51
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 12.7cm. Find the angle

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

    Simplify the ratio 24:8

    Answer: 3:1
  5. 5. Statistics

    Find the median of: 18, 12, 18, 14, 19

    Answer: 18

Friday 16 January 2026

Keystones #16 · Five questions · Open this day only

  1. 1. Number

    Multiply: 13 × 5

    Answer: 13 × 5 = 65
  2. 2. Algebra

    Solve: x + 12 = 21

    Answer: x = 9
  3. 3. Geometry

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

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

    Simplify the ratio 16:12

    Answer: 4:3
  5. 5. Statistics

    Find the mean of: 18, 12, 10, 17

    Answer: 14.25