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Cornerstone Jan 1 - 7 25 questions
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Monday 6 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 20 + 96

    Answer: 20 + 96 = 116
  2. 2. Algebra

    Solve: 5x = 75

    Answer: x = 15
  3. 3. Geometry

    Calculate the distance between (4, 10) and (7, 14)

    Answer: 5
  4. 4. Ratio

    Calculate 10% of 82

    Answer: 8.2
  5. 5. Statistics

    Find the range of: 8, 9, 12, 17, 32

    Answer: 24

Tuesday 7 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 51 + ? = 110

    Answer: 59
  2. 2. Algebra

    Find the next term: 12, 15, 18, 21, ...

    Answer: 24
  3. 3. Geometry

    Find the area of a circle with radius 9cm

    Answer: 254.47cm²
  4. 4. Ratio

    Simplify the ratio 8:32

    Answer: 1:4
  5. 5. Statistics

    Calculate the mean of: 37, 5, 24, 28, 14, 10, 26, 20

    Answer: 20.5

Wednesday 8 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 88 + ? = 161

    Answer: 73
  2. 2. Algebra

    Factorise: 18x + 42

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

    Find the area of a circle with radius 6cm

    Answer: 113.cm²
  4. 4. Ratio

    Simplify the ratio 16:32

    Answer: 1:2
  5. 5. Statistics

    Calculate the range of: 49, 84, 31, 110, 31, 82

    Answer: 79

Thursday 9 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 37 + 17

    Answer: 47
  2. 2. Algebra

    Expand: 3(2x + 6)

    Answer: 6x + 18
  3. 3. Geometry

    Calculate the area of a circle with diameter 13cm

    Answer: 132.73cm²
  4. 4. Ratio

    Simplify the ratio 35:10

    Answer: 7:2
  5. 5. Statistics

    Find the range of: 29, 43, 16, 34, 15

    Answer: 28

Friday 10 March 2023

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 82 + 36

    Answer: 82 + 36 = 118
  2. 2. Algebra

    Solve: 4x = 56

    Answer: x = 14
  3. 3. Geometry

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

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

    Simplify the ratio 24:15

    Answer: 8:5
  5. 5. Statistics

    Find the range of: 26, 20, 27, 20, 33

    Answer: 13