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Bedrock Jan 1 - 7 25 questions
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Monday 3 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 21 + 36

    Answer: 21 + 36 = 57
  2. 2. Algebra

    Find the midpoint of (6, 4) and (10, 15)

    Answer: (8, 9.5)
  3. 3. Geometry

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

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

    In ratio 3:2, the difference between shares is 20. What are the shares?

    Answer: 60 and 40
  5. 5. Statistics

    What is the probability of rolling a 5 on a fair die?

    Answer: 1⁄6

Tuesday 4 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Find the next term: 12, 18, 24, 30, ...

    Answer: 36
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 18cm. Find the angle

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

    Calculate 10% of 198

    Answer: 19.8
  5. 5. Statistics

    Find the mean of: 5, 3, 20

    Answer: 9.3333333333333

Wednesday 5 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 38 + 37

    Answer: 38 + 37 = 75
  2. 2. Algebra

    Factorise: 6x + 16

    Answer: 2(3x + 8)
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 18.4cm. Find the angle

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

    Simplify the ratio 12:16

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 9, 5, 13, 5, 9

    Answer: 8.2

Thursday 6 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 1⁄8

    Answer: 3⁄8
  2. 2. Algebra

    Find the next term: 9, 16, 23, 30, ...

    Answer: 37
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 19.8cm. Find the angle

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

    Simplify the ratio 6:16

    Answer: 3:8
  5. 5. Statistics

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

    Answer: 1⁄2

Friday 7 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 52 × 54

    Answer: 56
  2. 2. Algebra

    Find the midpoint of (5, 5) and (13, 17)

    Answer: (9, 11)
  3. 3. Geometry

    Find the area of a right triangle with base 11cm and height 7cm

    Answer: 38.5cm²
  4. 4. Ratio

    Simplify the ratio 8:4

    Answer: 2:1
  5. 5. Statistics

    Find the mean of: 7, 4, 4

    Answer: 5