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Cornerstone Aug 4 - 10 25 questions
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Monday 4 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 67 + 13

    Answer: 2521
  2. 2. Algebra

    Solve: 5x + 8 = 58

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Share 36 in the ratio 1:3

    Answer: 9 and 27
  5. 5. Statistics

    Find the mean of: 3, 15, 12

    Answer: 10

Tuesday 5 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 212 + 512

    Answer: 712
  2. 2. Algebra

    Solve: 8x - 8 = 88

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 12cm

    Answer: 12.65cm
  4. 4. Ratio

    Share 85 in the ratio 4:1

    Answer: 68 and 17
  5. 5. Statistics

    Calculate the mean of: 44, 35, 42, 34, 25, 35

    Answer: 35.8

Wednesday 6 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 13 + 68

    Answer: 1312
  2. 2. Algebra

    Solve: 6x - 7 = 41

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 7cm

    Answer: 7.62cm
  4. 4. Ratio

    Share 77 in the ratio 3:4

    Answer: 33 and 44
  5. 5. Statistics

    Calculate the mean of: 18, 9, 39, 9, 15, 9

    Answer: 16.5

Thursday 7 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 26 + 36

    Answer: 56
  2. 2. Algebra

    Solve: 6x + 7 = 67

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 11cm

    Answer: 15.56cm
  4. 4. Ratio

    Share 60 in the ratio 3:2

    Answer: 36 and 24
  5. 5. Statistics

    Find the mean of: 16, 12, 17, 13

    Answer: 14.5

Friday 8 August 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 25 + 25

    Answer: 45
  2. 2. Algebra

    Solve: 2x + 12 = 34

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 9cm

    Answer: 12.73cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Find the mean of: 16, 3, 9, 3, 12

    Answer: 8.6