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Bedrock Apr 9 - 15 25 questions
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Monday 13 April 2026

Keystones #103 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 2⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Find the next term: 11, 19, 27, 35, ...

    Answer: 43
  3. 3. Geometry

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

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

    Simplify the ratio 6:9

    Answer: 2:3
  5. 5. Statistics

    Find the mean of: 3, 15, 17, 17, 19

    Answer: 14.2

Tuesday 14 April 2026

Keystones #104 · Five questions · Open this day only

  1. 1. Number

    Calculate: 36 + 95

    Answer: 36 + 95 = 131
  2. 2. Algebra

    Factorise: 16x + 12

    Answer: 4(4x + 3)
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 16cm. Find the angle

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

    Simplify the ratio 12:16

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 3, 4, 19, 14, 16

    Answer: 11.2

Wednesday 15 April 2026

Keystones #105 · Five questions · Open this day only

  1. 1. Number

    Calculate: 36 + 33

    Answer: 36 + 33 = 69
  2. 2. Algebra

    Simplify: 9x + 7x

    Answer: 16x
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 10cm. Find the angle

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

    Calculate 25% of 59

    Answer: 14.75
  5. 5. Statistics

    Find the mean of: 9, 8, 8, 7

    Answer: 8

Thursday 16 April 2026

Keystones #106 · Five questions · Open this day only

  1. 1. Number

    Calculate: 72 ÷ 6

    Answer: 72 ÷ 6 = 12
  2. 2. Algebra

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

    Answer: 54
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 26cm. Find the angle

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

    Simplify the ratio 18:24

    Answer: 3:4
  5. 5. Statistics

    What is the probability of rolling a 2 on a fair die?

    Answer: 1⁄6

Friday 17 April 2026

Keystones #107 · Five questions · Open this day only

  1. 1. Number

    Calculate: 45 + 17

    Answer: 45 + 17 = 62
  2. 2. Algebra

    Simplify: 2x + 2x

    Answer: 4x
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 15.6cm. Find the angle

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

    Simplify the ratio 16:32

    Answer: 1:2
  5. 5. Statistics

    Find the mean of: 9, 5, 7, 17

    Answer: 9.5