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Bedrock Jan 1 - 7 25 questions
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Monday 19 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Expand: 5(x + 5)

    Answer: 5x + 25
  3. 3. Geometry

    Find the area of a right triangle with base 4cm and height 10cm

    Answer: 20cm²
  4. 4. Ratio

    Simplify the ratio 21:24

    Answer: 7:8
  5. 5. Statistics

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

    Answer: 1⁄2

Tuesday 20 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 45 + 11

    Answer: 45 + 11 = 56
  2. 2. Algebra

    Expand: 6(x + 6)

    Answer: 6x + 36
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

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

    Calculate 25% of 186

    Answer: 46.5
  5. 5. Statistics

    Find the mean of: 18, 4, 6, 9

    Answer: 9.25

Wednesday 21 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 54 + 89

    Answer: 54 + 89 = 143
  2. 2. Algebra

    Solve: x + 7 = 18

    Answer: x = 11
  3. 3. Geometry

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

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

    Simplify the ratio 28:20

    Answer: 7:5
  5. 5. Statistics

    Find the range of: 39, 22, 41, 18, 48

    Answer: 30

Thursday 22 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: -8 + (-9)

    Answer: -17
  2. 2. Algebra

    Find the next term: 18, 22, 26, 30, ...

    Answer: 34
  3. 3. Geometry

    Opposite = 12cm, hypotenuse = 24cm. Find the angle

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

    In ratio 5:2, the difference between shares is 60. What are the shares?

    Answer: 100 and 40
  5. 5. Statistics

    Find the mean of: 8, 20, 19, 16, 20

    Answer: 16.6

Friday 23 July 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 53 + 96

    Answer: 53 + 96 = 149
  2. 2. Algebra

    Find the next term: 8, 18, 28, 38, ...

    Answer: 48
  3. 3. Geometry

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

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

    Simplify the ratio 35:10

    Answer: 7:2
  5. 5. Statistics

    Find the mean of: 9, 3, 3, 9

    Answer: 6