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Cornerstone Jul 11 - 17 25 questions
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Monday 11 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 2x - 17 = 11

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.44cm
  4. 4. Ratio

    Share 55 in the ratio 1:4

    Answer: 11 and 44
  5. 5. Statistics

    Calculate the mean of: 25, 41, 11, 9, 30, 32, 38. Give your answer to 2 decimal places

    Answer: 26.57

Tuesday 12 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄8

    Answer: 11⁄24
  2. 2. Algebra

    Solve: 4x - 11 = 41

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 72 in the ratio 3:1

    Answer: 54 and 18
  5. 5. Statistics

    Calculate the mean of: 27, 45, 32, 17, 37, 40, 39, 19

    Answer: 32

Wednesday 13 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 1⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 4x + 4 = 44

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio

    Share 60 in the ratio 2:3

    Answer: 24 and 36
  5. 5. Statistics

    Find the mean of: 17, 11, 5

    Answer: 11

Thursday 14 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄9 + 1⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 6x + 7 = 61

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Divide 90 in the ratio 2:4:3

    Answer: 20, 40 and 30
  5. 5. Statistics

    Calculate the mean of: 43, 49, 50, 38, 10, 41, 40. Give your answer to 2 decimal places

    Answer: 38.71

Friday 15 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 1⁄5

    Answer: 33⁄40
  2. 2. Algebra

    Solve: 8x - 16 = 48

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Divide 68 in the ratio 1:1:2

    Answer: 17, 17 and 34
  5. 5. Statistics

    Find the mean of: 16, 10, 19

    Answer: 15