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Cornerstone Jun 27 - Jul 3 25 questions
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Monday 27 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄7 + 4⁄5

    Answer: 43⁄35
  2. 2. Algebra

    Solve: 3x + 13 = 34

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 120 in the ratio 2:2:1

    Answer: 48, 48 and 24
  5. 5. Statistics

    Find the mean of: 6, 24, 3

    Answer: 11

Tuesday 28 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 4⁄5

    Answer: 22⁄15
  2. 2. Algebra

    Solve: 4x + 3 = 39

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Divide 162 in the ratio 1:1:4

    Answer: 27, 27 and 108
  5. 5. Statistics

    Find the mean of: 13, 15, 8, 4

    Answer: 10

Wednesday 29 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 8x - 16 = 32

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.08cm
  4. 4. Ratio

    Divide 84 in the ratio 3:1:2

    Answer: 42, 14 and 28
  5. 5. Statistics

    Calculate the mean of: 18, 5, 44, 42, 35, 26, 22. Give your answer to 2 decimal places

    Answer: 27.43

Thursday 30 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 5⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 2x - 14 = 6

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 108 in the ratio 1:2:3

    Answer: 18, 36 and 54
  5. 5. Statistics

    Calculate the mean of: 9, 15, 12, 8, 18, 34, 48, 32

    Answer: 22

Friday 1 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 4⁄5

    Answer: 57⁄40
  2. 2. Algebra

    Solve: 5x + 8 = 28

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio

    Divide 84 in the ratio 1:2:4

    Answer: 12, 24 and 48
  5. 5. Statistics

    Calculate the mean of: 23, 25, 13, 13, 49, 9, 28, 10

    Answer: 21.25