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Cornerstone May 19 - 25 25 questions
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Monday 19 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 4x + 7 = 51

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.12cm
  4. 4. Ratio

    Share 90 in the ratio 2:3

    Answer: 36 and 54
  5. 5. Statistics

    Calculate the mean of: 49, 50, 30, 13, 34, 24, 21. Give your answer to 2 decimal places

    Answer: 31.57

Tuesday 20 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 2x + 7 = 17

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 51 in the ratio 1:2

    Answer: 17 and 34
  5. 5. Statistics

    Find the mean of: 18, 4, 11, 13, 4

    Answer: 10

Wednesday 21 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 6x - 14 = 40

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.56cm
  4. 4. Ratio

    Share 119 in the ratio 3:4

    Answer: 51 and 68
  5. 5. Statistics

    Calculate the mean of: 34, 48, 36, 47, 37, 14

    Answer: 36

Thursday 22 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄5

    Answer: 23⁄20
  2. 2. Algebra

    Solve: 6x - 13 = 35

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 28 in the ratio 3:1

    Answer: 21 and 7
  5. 5. Statistics

    Calculate the mean of: 14, 41, 24, 7, 10, 49, 36. Give your answer to 2 decimal places

    Answer: 25.86

Friday 23 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄11 + 1⁄11

    Answer: 7⁄11
  2. 2. Algebra

    Solve: 5x + 10 = 70

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 17.49cm
  4. 4. Ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics

    Find the mean of: 21, 15, 7, 9

    Answer: 13