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Cornerstone Apr 25 - May 1 25 questions
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Monday 25 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄5

    Answer: 13⁄15
  2. 2. Algebra

    Solve: 7x + 3 = 38

    Answer: x = 5
  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

    Divide 260 in the ratio 2:1:2

    Answer: 104, 52 and 104
  5. 5. Statistics

    Calculate the mean of: 41, 32, 12, 29, 23, 35, 17

    Answer: 27

Tuesday 26 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 6x + 9 = 51

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Divide 138 in the ratio 1:1:4

    Answer: 23, 23 and 92
  5. 5. Statistics

    Calculate the mean of: 12, 31, 23, 30, 25, 18, 38. Give your answer to 2 decimal places

    Answer: 25.29

Wednesday 27 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄6

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 4x - 13 = 11

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.26cm
  4. 4. Ratio

    Divide 144 in the ratio 1:1:2

    Answer: 36, 36 and 72
  5. 5. Statistics

    Find the mean of: 10, 17, 3

    Answer: 10

Thursday 28 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 4⁄7

    Answer: 15⁄14
  2. 2. Algebra

    Solve: 8x - 5 = 27

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 16.97cm
  4. 4. Ratio

    Divide 198 in the ratio 4:3:2

    Answer: 88, 66 and 44
  5. 5. Statistics

    Find the mean of: 13, 15, 15, 9

    Answer: 13

Friday 29 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 6⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 6x + 3 = 63

    Answer: x = 10
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Divide 171 in the ratio 4:2:3

    Answer: 76, 38 and 57
  5. 5. Statistics

    Calculate the mean of: 45, 25, 42, 5, 36, 30, 18. Give your answer to 2 decimal places

    Answer: 28.71