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Cornerstone Feb 24 - Mar 2 25 questions
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Monday 24 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 7x - 20 = 71

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio

    Divide 116 in the ratio 1:2:1

    Answer: 29, 58 and 29
  5. 5. Statistics

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

    Answer: 7

Tuesday 25 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x + 3 = 51

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 88 in the ratio 1:2:1

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

    Calculate the mean of: 28, 40, 5, 23, 12, 25. Give your answer to 2 decimal places

    Answer: 22.17

Wednesday 26 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 1⁄6

    Answer: 19⁄24
  2. 2. Algebra

    Solve: 2x + 15 = 25

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 14.14cm
  4. 4. Ratio

    Divide 234 in the ratio 4:4:1

    Answer: 104, 104 and 26
  5. 5. Statistics

    Calculate the mean of: 16, 23, 23, 13, 22, 47, 16. Give your answer to 2 decimal places

    Answer: 22.86

Thursday 27 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x - 10 = 95

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Divide 128 in the ratio 1:2:1

    Answer: 32, 64 and 32
  5. 5. Statistics

    Find the mean of: 19, 18, 5

    Answer: 14

Friday 28 February 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 2⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 4x - 11 = 21

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 168 in the ratio 4:2:1

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

    Find the mean of: 7, 9, 14

    Answer: 10