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Cornerstone Nov 19 - 25 25 questions
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Monday 19 November 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 6⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 4x + 11 = 55

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio

    Divide 84 in the ratio 3:1:2

    Answer: 42, 14 and 28
  5. 5. Statistics

    Find the mean of: 23, 5, 19, 12, 6

    Answer: 13

Tuesday 20 November 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 6x + 14 = 56

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 136 in the ratio 3:4:1

    Answer: 51, 68 and 17
  5. 5. Statistics

    Calculate the mean of: 26, 21, 19, 23, 12, 42, 7, 8

    Answer: 19.75

Wednesday 21 November 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 3⁄5

    Answer: 27⁄20
  2. 2. Algebra

    Solve: 8x - 5 = 43

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Divide 200 in the ratio 1:3:4

    Answer: 25, 75 and 100
  5. 5. Statistics

    Find the mean of: 15, 4, 14

    Answer: 11

Thursday 22 November 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄7 + 3⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 4x - 7 = 45

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 160 in the ratio 2:1:1

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

    Find the mean of: 5, 9, 17, 17

    Answer: 12

Friday 23 November 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 3⁄5

    Answer: 26⁄35
  2. 2. Algebra

    Solve: 5x + 9 = 69

    Answer: x = 12
  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 115 in the ratio 1:2:2

    Answer: 23, 46 and 46
  5. 5. Statistics

    Calculate the mean of: 16, 7, 18, 26, 36, 8

    Answer: 18.5