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Cornerstone Jun 17 - 23 25 questions
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Monday 17 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 2⁄4

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 4x + 15 = 55

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio

    Divide 128 in the ratio 3:1:4

    Answer: 48, 16 and 64
  5. 5. Statistics

    Find the mean of: 6, 20, 16

    Answer: 14

Tuesday 18 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄5

    Answer: 13⁄15
  2. 2. Algebra

    Solve: 3x + 15 = 39

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio

    Divide 115 in the ratio 3:1:1

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

    Find the mean of: 19, 6, 19, 16

    Answer: 15

Wednesday 19 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄9 + 6⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 4x - 6 = 30

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Divide 144 in the ratio 4:3:1

    Answer: 72, 54 and 18
  5. 5. Statistics

    Calculate the mean of: 22, 8, 5, 22, 50, 15. Give your answer to 2 decimal places

    Answer: 20.33

Thursday 20 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 1⁄3

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 6x - 16 = 62

    Answer: x = 13
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 15cm

    Answer: 17cm
  4. 4. Ratio

    Divide 72 in the ratio 3:1:2

    Answer: 36, 12 and 24
  5. 5. Statistics

    Find the mean of: 2, 3, 20, 15

    Answer: 10

Friday 21 June 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 3⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 5x + 13 = 48

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 80 in the ratio 3:4:1

    Answer: 30, 40 and 10
  5. 5. Statistics

    Calculate the mean of: 32, 38, 12, 23, 37, 24. Give your answer to 2 decimal places

    Answer: 27.67