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Cornerstone Apr 22 - 28 25 questions
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Monday 22 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄8 + 1⁄5

    Answer: 33⁄40
  2. 2. Algebra

    Solve: 3x - 15 = 3

    Answer: x = 6
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Divide 216 in the ratio 3:2:3

    Answer: 81, 54 and 81
  5. 5. Statistics

    Calculate the mean of: 28, 5, 33, 43, 11, 18

    Answer: 23

Tuesday 23 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄10 + 1⁄10

    Answer: 1⁄5
  2. 2. Algebra

    Solve: 4x + 13 = 57

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio

    Divide 174 in the ratio 2:3:1

    Answer: 58, 87 and 29
  5. 5. Statistics

    Find the mean of: 19, 10, 2, 17

    Answer: 12

Wednesday 24 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 5x + 10 = 70

    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

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 27, 27, 6, 13, 41, 20, 23. Give your answer to 2 decimal places

    Answer: 22.43

Thursday 25 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 1⁄4

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 5x - 16 = 9

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics

    Find the mean of: 9, 3, 3

    Answer: 5

Friday 26 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 1⁄10

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 8x - 16 = 48

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 11.66cm
  4. 4. Ratio

    Share 44 in the ratio 3:1

    Answer: 33 and 11
  5. 5. Statistics

    Find the mean of: 2, 15, 16

    Answer: 11