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Cornerstone Jun 6 - 12 25 questions
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Monday 6 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 5⁄8

    Answer: 9⁄8
  2. 2. Algebra

    Solve: 6x - 17 = 25

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio

    Divide 152 in the ratio 1:3:4

    Answer: 19, 57 and 76
  5. 5. Statistics

    Find the mean of: 16, 11, 4, 19, 20

    Answer: 14

Tuesday 7 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 7x + 7 = 63

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio

    Divide 150 in the ratio 3:4:3

    Answer: 45, 60 and 45
  5. 5. Statistics

    Calculate the mean of: 9, 40, 20, 41, 32, 48, 49. Give your answer to 2 decimal places

    Answer: 34.14

Wednesday 8 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄10 + 5⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 3x + 8 = 17

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Divide 200 in the ratio 1:2:2

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

    Calculate the mean of: 19, 25, 21, 35, 22, 14, 34. Give your answer to 2 decimal places

    Answer: 24.29

Thursday 9 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 2⁄5

    Answer: 16⁄15
  2. 2. Algebra

    Solve: 8x - 16 = 40

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 13.93cm
  4. 4. Ratio

    Divide 154 in the ratio 3:1:3

    Answer: 66, 22 and 66
  5. 5. Statistics

    Find the mean of: 10, 18, 2

    Answer: 10

Friday 10 June 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄6

    Answer: 3⁄2
  2. 2. Algebra

    Solve: 7x - 9 = 89

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Divide 112 in the ratio 4:1:2

    Answer: 64, 16 and 32
  5. 5. Statistics

    Find the mean of: 10, 11, 6, 9

    Answer: 9