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Cornerstone Dec 23 - 29 25 questions
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Monday 23 December 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 2⁄8

    Answer: 3⁄8
  2. 2. Algebra

    Solve: 2x + 12 = 22

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 10cm
  4. 4. Ratio

    Share 90 in the ratio 1:2

    Answer: 30 and 60
  5. 5. Statistics

    Calculate the mean of: 38, 50, 5, 15, 15, 5, 48, 17. Give your answer to 2 decimal places

    Answer: 24.13

Tuesday 24 December 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 4⁄10

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 6x + 7 = 79

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Divide 180 in the ratio 2:2:1

    Answer: 72, 72 and 36
  5. 5. Statistics

    Find the mean of: 9, 3, 18, 18

    Answer: 12

Wednesday 25 December 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 7x - 17 = 60

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 7.07cm
  4. 4. Ratio

    Divide 70 in the ratio 3:3:1

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

    Calculate the mean of: 28, 39, 30, 44, 35, 43, 36, 15

    Answer: 33.75

Thursday 26 December 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 3⁄10

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 5x - 14 = 51

    Answer: x = 13
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Divide 168 in the ratio 3:2:1

    Answer: 84, 56 and 28
  5. 5. Statistics

    Calculate the mean of: 40, 17, 26, 29, 45, 45. Give your answer to 2 decimal places

    Answer: 33.67

Friday 27 December 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 1⁄5

    Answer: 27⁄35
  2. 2. Algebra

    Solve: 5x + 8 = 63

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 12.73cm
  4. 4. Ratio

    Divide 119 in the ratio 3:2:2

    Answer: 51, 34 and 34
  5. 5. Statistics

    Find the mean of: 15, 2, 9, 21, 8

    Answer: 11