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Cornerstone Sep 1 - 7 25 questions
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Monday 1 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 2⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 2x - 16 = 14

    Answer: x = 15
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 104 in the ratio 4:1:3

    Answer: 52, 13 and 39
  5. 5. Statistics

    Find the mean of: 20, 3, 9, 8, 10

    Answer: 10

Tuesday 2 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 4x - 6 = 14

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio

    Divide 162 in the ratio 4:2:3

    Answer: 72, 36 and 54
  5. 5. Statistics

    Find the mean of: 7, 9, 17, 7

    Answer: 10

Wednesday 3 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 1⁄7

    Answer: 2⁄7
  2. 2. Algebra

    Solve: 5x + 6 = 26

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 145 in the ratio 3:1:1

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

    Calculate the mean of: 45, 12, 9, 42, 46, 45. Give your answer to 2 decimal places

    Answer: 33.17

Thursday 4 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 2x + 13 = 21

    Answer: x = 4
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 84 in the ratio 1:2

    Answer: 28 and 56
  5. 5. Statistics

    Find the mean of: 11, 15, 4

    Answer: 10

Friday 5 September 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 6⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 2x - 13 = 15

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio

    Share 100 in the ratio 2:3

    Answer: 40 and 60
  5. 5. Statistics

    Calculate the mean of: 5, 43, 24, 17, 28, 18, 48, 49

    Answer: 29