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Cornerstone Aug 7 - 13 25 questions
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Monday 7 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 4x - 7 = 37

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Share 55 in the ratio 2:3

    Answer: 22 and 33
  5. 5. Statistics

    Calculate the mean of: 21, 24, 38, 37, 11, 48, 49, 34

    Answer: 32.75

Tuesday 8 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄11 + 4⁄11

    Answer: 5⁄11
  2. 2. Algebra

    Solve: 4x - 17 = 3

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Share 72 in the ratio 1:3

    Answer: 18 and 54
  5. 5. Statistics

    Calculate the mean of: 16, 40, 34, 45, 26, 9, 19, 49

    Answer: 29.75

Wednesday 9 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 1⁄5

    Answer: 37⁄35
  2. 2. Algebra

    Solve: 6x + 11 = 29

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 50 in the ratio 4:1

    Answer: 40 and 10
  5. 5. Statistics

    Find the mean of: 16, 10, 10, 12, 17

    Answer: 13

Thursday 10 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 3⁄7

    Answer: 33⁄28
  2. 2. Algebra

    Solve: 5x + 7 = 62

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 6.4cm
  4. 4. Ratio

    Share 84 in the ratio 2:1

    Answer: 56 and 28
  5. 5. Statistics

    Find the mean of: 10, 18, 2

    Answer: 10

Friday 11 August 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄8 + 3⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 3x - 14 = 1

    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

    Share 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics

    Calculate the mean of: 32, 26, 30, 22, 30, 20, 37. Give your answer to 2 decimal places

    Answer: 28.14