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Cornerstone Jun 19 - 25 25 questions
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Monday 19 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 3x + 9 = 27

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio

    Share 126 in the ratio 4:3

    Answer: 72 and 54
  5. 5. Statistics

    Find the mean of: 10, 23, 6

    Answer: 13

Tuesday 20 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 4⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 3x + 3 = 30

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Share 51 in the ratio 2:1

    Answer: 34 and 17
  5. 5. Statistics

    Calculate the mean of: 33, 9, 31, 17, 43, 11, 19. Give your answer to 2 decimal places

    Answer: 23.29

Wednesday 21 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 2⁄4

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 5x - 14 = 31

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 42 in the ratio 2:1

    Answer: 28 and 14
  5. 5. Statistics

    Find the mean of: 7, 20, 6, 15

    Answer: 12

Thursday 22 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x - 19 = 37

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 20 in the ratio 3:1

    Answer: 15 and 5
  5. 5. Statistics

    Find the mean of: 16, 18, 11

    Answer: 15

Friday 23 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 7x + 15 = 71

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.3cm
  4. 4. Ratio

    Share 24 in the ratio 3:1

    Answer: 18 and 6
  5. 5. Statistics

    Calculate the mean of: 19, 14, 43, 11, 16, 32, 47, 36

    Answer: 27.25