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Cornerstone Jan 1 - 7 25 questions
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Monday 23 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 447 + 397

    Answer: 447 + 397 = 844
  2. 2. Algebra

    What is the next term? 3, 6, 12, 24, ...

    Answer: 48
  3. 3. Geometry

    Find the area of a circle with radius 8cm

    Answer: 201.06cm²
  4. 4. Ratio

    Simplify: 6:8:12

    Answer: 3:4:6
  5. 5. Statistics

    Find the mean of: 11, 20, 4

    Answer: 11.666666666667

Tuesday 24 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 66 + ? = 146

    Answer: 80
  2. 2. Algebra

    Factorise: 2x² + 9x

    Answer: x(2x + 9)
  3. 3. Geometry

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

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

    Calculate 25% of 74

    Answer: 18.5
  5. 5. Statistics

    Calculate the mean of: 38, 48, 17, 24, 50, 7, 33, 46

    Answer: 32.9

Wednesday 25 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 75 + 61

    Answer: 75 + 61 = 136
  2. 2. Algebra

    Factorise: 6x + 12

    Answer: 3(2x + 4)
  3. 3. Geometry

    Opposite = 16cm, adjacent = 14cm. Calculate the angle

    Answer: 48.8°
  4. 4. Ratio

    Simplify the ratio 32:16

    Answer: 2:1
  5. 5. Statistics

    Find the mean of: 12, 16, 5

    Answer: 11

Thursday 26 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 49 + ? = 132

    Answer: 83
  2. 2. Algebra

    Simplify: 3x + 8x

    Answer: 11x
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

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

    Simplify the ratio 18:24

    Answer: 3:4
  5. 5. Statistics

    Find the mean of: 5, 19, 10

    Answer: 11.333333333333

Friday 27 September 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 8x = 40

    Answer: x = 5
  3. 3. Geometry

    Calculate the area of a circle with diameter 16cm

    Answer: 201.06cm²
  4. 4. Ratio

    Calculate 50% of 101

    Answer: 50.5
  5. 5. Statistics

    Calculate the range of: 68, 46, 72, 38, 72, 68

    Answer: 34