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Bedrock Jan 1 - 7 25 questions
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Monday 6 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 23 + 37

    Answer: 23 + 37 = 60
  2. 2. Algebra

    Find the next term: 18, 28, 38, 48, ...

    Answer: 58
  3. 3. Geometry

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

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

    Simplify the ratio 15:20

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 5, 7, 18

    Answer: 10

Tuesday 7 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 6⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Factorise: 30x + 36

    Answer: 6(5x + 6)
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 22cm. Find the angle

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

    Simplify the ratio 25:30

    Answer: 5:6
  5. 5. Statistics

    Find the mean of: 5, 11, 19

    Answer: 11.666666666667

Wednesday 8 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 79 + 75

    Answer: 79 + 75 = 154
  2. 2. Algebra

    Simplify: 2x + 5x

    Answer: 7x
  3. 3. Geometry

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

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

    Simplify the ratio 18:12

    Answer: 3:2
  5. 5. Statistics

    Find the mean of: 6, 6, 2

    Answer: 4.6666666666667

Thursday 9 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 2⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: x + 8 = 12

    Answer: x = 4
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

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

    Simplify the ratio 21:24

    Answer: 7:8
  5. 5. Statistics

    Find the mean of: 4, 18, 15, 18

    Answer: 13.75

Friday 10 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Simplify: 7x + 7x

    Answer: 14x
  3. 3. Geometry

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

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

    Simplify the ratio 24:16

    Answer: 3:2
  5. 5. Statistics

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

    Answer: 1⁄2