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Cornerstone Jun 12 - 18 25 questions
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Monday 12 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄11 + 4⁄11

    Answer: 5⁄11
  2. 2. Algebra

    Solve: 5x + 6 = 31

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Divide 290 in the ratio 3:4:3

    Answer: 87, 116 and 87
  5. 5. Statistics

    Calculate the mean of: 46, 5, 22, 32, 46, 35, 29, 25

    Answer: 30

Tuesday 13 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 3⁄4

    Answer: 9⁄8
  2. 2. Algebra

    Solve: 2x - 17 = -1

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio

    Divide 88 in the ratio 1:2:1

    Answer: 22, 44 and 22
  5. 5. Statistics

    Find the mean of: 17, 10, 15

    Answer: 14

Wednesday 14 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 3⁄5

    Answer: 59⁄40
  2. 2. Algebra

    Solve: 7x - 9 = 19

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Share 42 in the ratio 2:1

    Answer: 28 and 14
  5. 5. Statistics

    Calculate the mean of: 28, 16, 12, 26, 9, 36. Give your answer to 2 decimal places

    Answer: 21.17

Thursday 15 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 3⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 5x + 13 = 28

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio

    Share 20 in the ratio 1:3

    Answer: 5 and 15
  5. 5. Statistics

    Find the mean of: 13, 2, 15, 10, 20

    Answer: 12

Friday 16 June 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄6

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 5x + 3 = 23

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio

    Share 80 in the ratio 3:1

    Answer: 60 and 20
  5. 5. Statistics

    Find the mean of: 15, 2, 17, 6

    Answer: 10