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Cornerstone Jul 4 - 10 25 questions
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Monday 4 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 8x - 11 = 37

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio

    Share 91 in the ratio 4:3

    Answer: 52 and 39
  5. 5. Statistics

    Calculate the mean of: 50, 13, 28, 46, 42, 49, 20. Give your answer to 2 decimal places

    Answer: 35.43

Tuesday 5 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 4x + 6 = 18

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 8.06cm
  4. 4. Ratio

    Share 90 in the ratio 2:3

    Answer: 36 and 54
  5. 5. Statistics

    Find the mean of: 6, 14, 17, 23

    Answer: 15

Wednesday 6 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 1⁄3

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 2x + 9 = 17

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.81cm
  4. 4. Ratio

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics

    Find the mean of: 16, 9, 6, 7, 17

    Answer: 11

Thursday 7 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄12 + 2⁄12

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 3x - 10 = 20

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 33, 9, 29, 16, 19, 38, 16, 30

    Answer: 23.75

Friday 8 July 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 1⁄10

    Answer: 3⁄10
  2. 2. Algebra

    Solve: 2x - 16 = -8

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Share 140 in the ratio 4:3

    Answer: 80 and 60
  5. 5. Statistics

    Calculate the mean of: 33, 23, 24, 8, 41, 41, 17. Give your answer to 2 decimal places

    Answer: 26.71