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Cornerstone Sep 22 - 28 25 questions
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Monday 22 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x - 14 = 51

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 15.56cm
  4. 4. Ratio

    Divide 99 in the ratio 4:2:3

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

    Calculate the mean of: 17, 31, 36, 27, 47, 33. Give your answer to 2 decimal places

    Answer: 31.83

Tuesday 23 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄7

    Answer: 10⁄21
  2. 2. Algebra

    Solve: 7x + 4 = 32

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Divide 160 in the ratio 1:2:1

    Answer: 40, 80 and 40
  5. 5. Statistics

    Find the mean of: 8, 20, 7, 5

    Answer: 10

Wednesday 24 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 1⁄8

    Answer: 15⁄56
  2. 2. Algebra

    Solve: 4x + 15 = 35

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Calculate the mean of: 44, 37, 27, 46, 46, 37, 27. Give your answer to 2 decimal places

    Answer: 37.71

Thursday 25 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 5⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 8x - 16 = 32

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 11.18cm
  4. 4. Ratio

    Share 27 in the ratio 2:1

    Answer: 18 and 9
  5. 5. Statistics

    Find the mean of: 5, 2, 5, 15, 13

    Answer: 8

Friday 26 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 3⁄4

    Answer: 13⁄8
  2. 2. Algebra

    Solve: 2x - 19 = 7

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics

    Find the mean of: 4, 12, 8

    Answer: 8