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Cornerstone Feb 8 - 14 25 questions
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Monday 8 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 2⁄7

    Answer: 47⁄42
  2. 2. Algebra

    Solve: 4x - 11 = 9

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio

    Share 96 in the ratio 2:1

    Answer: 64 and 32
  5. 5. Statistics

    Find the mean of: 2, 17, 8

    Answer: 9

Tuesday 9 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x + 12 = 72

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 63 in the ratio 3:4

    Answer: 27 and 36
  5. 5. Statistics

    Calculate the mean of: 26, 11, 25, 21, 20, 30, 26, 33

    Answer: 24

Wednesday 10 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 3x + 5 = 41

    Answer: x = 12
  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 3:2

    Answer: 33 and 22
  5. 5. Statistics

    Calculate the mean of: 46, 40, 11, 36, 49, 11, 38

    Answer: 33

Thursday 11 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄3

    Answer: 14⁄15
  2. 2. Algebra

    Solve: 3x - 16 = 5

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Share 66 in the ratio 1:2

    Answer: 22 and 44
  5. 5. Statistics

    Find the mean of: 12, 18, 15

    Answer: 15

Friday 12 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 4⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 10 = 18

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 12.65cm
  4. 4. Ratio

    Share 15 in the ratio 1:2

    Answer: 5 and 10
  5. 5. Statistics

    Find the mean of: 6, 11, 12, 7

    Answer: 9