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Cornerstone Mar 14 - 20 25 questions
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Monday 14 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 1⁄7

    Answer: 17⁄21
  2. 2. Algebra

    Solve: 2x - 17 = 13

    Answer: x = 15
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics

    Find the mean of: 7, 13, 5, 23

    Answer: 12

Tuesday 15 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 2x + 7 = 19

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 18.44cm
  4. 4. Ratio

    Share 60 in the ratio 3:2

    Answer: 36 and 24
  5. 5. Statistics

    Calculate the mean of: 45, 44, 28, 35, 42, 31

    Answer: 37.5

Wednesday 16 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 4⁄5

    Answer: 22⁄15
  2. 2. Algebra

    Solve: 3x + 3 = 18

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Share 35 in the ratio 1:4

    Answer: 7 and 28
  5. 5. Statistics

    Calculate the mean of: 5, 37, 11, 23, 45, 34. Give your answer to 2 decimal places

    Answer: 25.83

Thursday 17 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄11 + 5⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 2x - 17 = 3

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 5cm

    Answer: 13cm
  4. 4. Ratio

    Share 40 in the ratio 4:1

    Answer: 32 and 8
  5. 5. Statistics

    Find the mean of: 19, 13, 11, 5

    Answer: 12

Friday 18 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 2⁄7

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 8x - 16 = 40

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.69cm
  4. 4. Ratio

    Share 60 in the ratio 1:3

    Answer: 15 and 45
  5. 5. Statistics

    Find the mean of: 14, 2, 19, 5

    Answer: 10