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Cornerstone Jul 15 - 21 25 questions
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Monday 15 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 6⁄7

    Answer: 19⁄14
  2. 2. Algebra

    Solve: 3x + 12 = 48

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.64cm
  4. 4. Ratio

    Share 36 in the ratio 1:3

    Answer: 9 and 27
  5. 5. Statistics

    Calculate the mean of: 14, 20, 35, 6, 5, 20. Give your answer to 2 decimal places

    Answer: 16.67

Tuesday 16 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 2⁄7

    Answer: 3⁄7
  2. 2. Algebra

    Solve: 3x + 11 = 29

    Answer: x = 6
  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 1:2

    Answer: 14 and 28
  5. 5. Statistics

    Calculate the mean of: 13, 26, 6, 19, 23, 6, 39. Give your answer to 2 decimal places

    Answer: 18.86

Wednesday 17 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 1⁄8

    Answer: 19⁄24
  2. 2. Algebra

    Solve: 2x - 19 = 5

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 42 in the ratio 3:4

    Answer: 18 and 24
  5. 5. Statistics

    Find the mean of: 19, 13, 5, 3

    Answer: 10

Thursday 18 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 2⁄7

    Answer: 20⁄21
  2. 2. Algebra

    Solve: 3x - 9 = 30

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 9.49cm
  4. 4. Ratio

    Share 48 in the ratio 2:1

    Answer: 32 and 16
  5. 5. Statistics

    Find the mean of: 14, 10, 3, 5

    Answer: 8

Friday 19 July 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x + 6 = 26

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 85 in the ratio 4:1

    Answer: 68 and 17
  5. 5. Statistics

    Calculate the mean of: 20, 18, 16, 43, 48, 31. Give your answer to 2 decimal places

    Answer: 29.33