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Cornerstone Apr 21 - 27 25 questions
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Monday 21 April 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄12 + 6⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x + 12 = 45

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 8.49cm
  4. 4. Ratio

    Divide 154 in the ratio 1:3:3

    Answer: 22, 66 and 66
  5. 5. Statistics

    Calculate the mean of: 16, 32, 31, 19, 11, 15, 28. Give your answer to 2 decimal places

    Answer: 21.71

Tuesday 22 April 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 2⁄3

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x + 9 = 29

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 99 in the ratio 4:3:2

    Answer: 44, 33 and 22
  5. 5. Statistics

    Calculate the mean of: 30, 25, 23, 40, 43, 6, 25. Give your answer to 2 decimal places

    Answer: 27.43

Wednesday 23 April 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 8x - 17 = 39

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio

    Divide 232 in the ratio 3:2:3

    Answer: 87, 58 and 87
  5. 5. Statistics

    Find the mean of: 14, 19, 4, 18, 15

    Answer: 14

Thursday 24 April 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 8x - 15 = 41

    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 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics

    Calculate the mean of: 7, 23, 48, 42, 41, 26, 35. Give your answer to 2 decimal places

    Answer: 31.71

Friday 25 April 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄5 + 5⁄6

    Answer: 37⁄30
  2. 2. Algebra

    Solve: 3x + 12 = 39

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 18 in the ratio 2:1

    Answer: 12 and 6
  5. 5. Statistics

    Find the mean of: 2, 19, 3

    Answer: 8