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Cornerstone Jan 26 - Feb 1 25 questions
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Monday 26 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄11 + 3⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 6x + 7 = 43

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 55 in the ratio 3:2

    Answer: 33 and 22
  5. 5. Statistics

    Calculate the mean of: 20, 40, 21, 5, 35, 42, 46. Give your answer to 2 decimal places

    Answer: 29.86

Tuesday 27 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 2⁄4

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x - 7 = 42

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio

    Share 30 in the ratio 1:4

    Answer: 6 and 24
  5. 5. Statistics

    Find the mean of: 3, 18, 3

    Answer: 8

Wednesday 28 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 2⁄4

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 2x - 16 = -4

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio

    Share 39 in the ratio 1:2

    Answer: 13 and 26
  5. 5. Statistics

    Find the mean of: 2, 16, 17, 21

    Answer: 14

Thursday 29 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 1⁄10

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 5x + 13 = 58

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Share 42 in the ratio 4:3

    Answer: 24 and 18
  5. 5. Statistics

    Calculate the mean of: 37, 10, 19, 20, 19, 18, 18. Give your answer to 2 decimal places

    Answer: 20.14

Friday 30 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄12 + 2⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x + 15 = 43

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 8.06cm
  4. 4. Ratio

    Share 45 in the ratio 3:2

    Answer: 27 and 18
  5. 5. Statistics

    Calculate the mean of: 48, 26, 21, 50, 20, 21, 28, 13. Give your answer to 2 decimal places

    Answer: 28.38