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Cornerstone May 16 - 22 25 questions
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Monday 16 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 6⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x + 12 = 33

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Divide 126 in the ratio 3:4:2

    Answer: 42, 56 and 28
  5. 5. Statistics

    Find the mean of: 4, 14, 13, 5

    Answer: 9

Tuesday 17 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 1⁄5

    Answer: 9⁄20
  2. 2. Algebra

    Solve: 3x - 15 = 15

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio

    Divide 156 in the ratio 2:1:3

    Answer: 52, 26 and 78
  5. 5. Statistics

    Calculate the mean of: 13, 33, 10, 33, 45, 43, 25, 39. Give your answer to 2 decimal places

    Answer: 30.13

Wednesday 18 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 3⁄4

    Answer: 13⁄8
  2. 2. Algebra

    Solve: 6x - 8 = 28

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.26cm
  4. 4. Ratio

    Divide 44 in the ratio 1:1:2

    Answer: 11, 11 and 22
  5. 5. Statistics

    Calculate the mean of: 18, 30, 5, 23, 41, 8, 42. Give your answer to 2 decimal places

    Answer: 23.86

Thursday 19 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x + 6 = 61

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Divide 115 in the ratio 1:3:1

    Answer: 23, 69 and 23
  5. 5. Statistics

    Find the mean of: 8, 11, 21, 4

    Answer: 11

Friday 20 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 4⁄6

    Answer: 17⁄12
  2. 2. Algebra

    Solve: 2x + 12 = 26

    Answer: x = 7
  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 133 in the ratio 1:2:4

    Answer: 19, 38 and 76
  5. 5. Statistics

    Calculate the mean of: 24, 12, 28, 7, 37, 44. Give your answer to 2 decimal places

    Answer: 25.33