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Bedrock Jan 1 - 7 25 questions
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Monday 19 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Find the next term: 20, 25, 30, 35, ...

    Answer: 40
  3. 3. Geometry

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

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

    Simplify the ratio 12:9

    Answer: 4:3
  5. 5. Statistics

    Find the median of: 16, 10, 19, 5, 5

    Answer: 10

Tuesday 20 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6.8 + 1.8

    Answer: 6.8 + 1.8 = 8.6
  2. 2. Algebra

    Factorise: 10x + 16

    Answer: 2(5x + 8)
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

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

    Simplify the ratio 25:30

    Answer: 5:6
  5. 5. Statistics

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

    Answer: 1⁄2

Wednesday 21 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 96 + 40

    Answer: 96 + 40 = 136
  2. 2. Algebra

    Simplify: 2x + 2x

    Answer: 4x
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

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

    In ratio 4:1, the difference between shares is 33. What are the shares?

    Answer: 44 and 11
  5. 5. Statistics

    Find the mean of: 11, 15, 10, 7, 20

    Answer: 12.6

Thursday 22 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 35 + 31

    Answer: 35 + 31 = 66
  2. 2. Algebra

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

    Answer: 51
  3. 3. Geometry

    Find the area of a circle with radius 7cm

    Answer: 153.94cm²
  4. 4. Ratio

    Calculate 25% of 103

    Answer: 25.75
  5. 5. Statistics

    Find the mean of: 13, 9, 18, 20, 3

    Answer: 12.6

Friday 23 September 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 91 + 46

    Answer: 91 + 46 = 137
  2. 2. Algebra

    Factorise: 21x + 18

    Answer: 3(7x + 6)
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 8.cm. Find the angle

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

    Simplify the ratio 18:24

    Answer: 3:4
  5. 5. Statistics

    Find the range of: 32, 22, 18, 17, 14

    Answer: 18