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Bedrock Apr 9 - 15 25 questions
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Monday 6 April 2026

Keystones #96 · Five questions · Open this day only

  1. 1. Number

    Calculate: 35 + 28

    Answer: 35 + 28 = 63
  2. 2. Algebra

    Find the next term: 26, 34, 42, 50, ...

    Answer: 58
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 14cm. Find the angle

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

    Calculate 25% of 97

    Answer: 24.25
  5. 5. Statistics

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

    Answer: 1⁄6

Tuesday 7 April 2026

Keystones #97 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Find the next term: 14, 23, 32, 41, ...

    Answer: 50
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

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

    Simplify the ratio 6:12

    Answer: 1:2
  5. 5. Statistics

    Find the range of: 26, 15, 24, 38, 34

    Answer: 23

Wednesday 8 April 2026

Keystones #98 · Five questions · Open this day only

  1. 1. Number

    Round 59 to the nearest 10

    Answer: 60
  2. 2. Algebra

    Factorise: 8x + 14

    Answer: 2(4x + 7)
  3. 3. Geometry

    Find the area of a right triangle with base 4cm and height 9cm

    Answer: 18cm²
  4. 4. Ratio

    Simplify the ratio 21:18

    Answer: 7:6
  5. 5. Statistics

    Find the mean of: 18, 17, 9, 18

    Answer: 15.5

Thursday 9 April 2026

Keystones #99 · Five questions · Open this day only

  1. 1. Number

    Calculate: 39 + 30

    Answer: 39 + 30 = 69
  2. 2. Algebra

    Find the next term: 24, 30, 36, 42, ...

    Answer: 48
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 21.2cm. Find the angle

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

    Simplify the ratio 12:6

    Answer: 2:1
  5. 5. Statistics

    Find the range of: 18, 16, 13, 6, 16

    Answer: 12

Friday 10 April 2026

Keystones #100 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄11 + 2⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Factorise: 6x + 15

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

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

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

    Simplify the ratio 24:21

    Answer: 8:7
  5. 5. Statistics

    Find the mean of: 6, 20, 5, 11, 19

    Answer: 12.2