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Cornerstone Aug 25 - 31 25 questions
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Monday 25 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 3⁄10

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 4x + 5 = 53

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio

    Divide 176 in the ratio 4:4:3

    Answer: 64, 64 and 48
  5. 5. Statistics

    Find the mean of: 10, 15, 10, 25

    Answer: 15

Tuesday 26 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 2⁄7

    Answer: 13⁄21
  2. 2. Algebra

    Solve: 2x + 11 = 25

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 168 in the ratio 1:2:4

    Answer: 24, 48 and 96
  5. 5. Statistics

    Find the mean of: 17, 12, 12, 19

    Answer: 15

Wednesday 27 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 1⁄7

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 6x - 14 = 58

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio

    Divide 91 in the ratio 3:2:2

    Answer: 39, 26 and 26
  5. 5. Statistics

    Calculate the mean of: 10, 14, 19, 39, 20, 13, 13, 22

    Answer: 18.75

Thursday 28 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 4x - 5 = 27

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 216 in the ratio 2:1:1

    Answer: 108, 54 and 54
  5. 5. Statistics

    Calculate the mean of: 17, 22, 45, 17, 46, 22, 20, 40. Give your answer to 2 decimal places

    Answer: 28.63

Friday 29 August 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄7 + 1⁄8

    Answer: 47⁄56
  2. 2. Algebra

    Solve: 5x + 14 = 39

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Divide 128 in the ratio 3:2:3

    Answer: 48, 32 and 48
  5. 5. Statistics

    Find the mean of: 9, 8, 9, 2

    Answer: 7