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Cornerstone Jan 6 - 12 25 questions
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Monday 6 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 3⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 6x + 12 = 72

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 63 in the ratio 3:4

    Answer: 27 and 36
  5. 5. Statistics

    Find the mean of: 2, 8, 3, 15

    Answer: 7

Tuesday 7 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 6⁄7 + 3⁄4

    Answer: 45⁄28
  2. 2. Algebra

    Solve: 6x - 8 = 76

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.26cm
  4. 4. Ratio

    Share 133 in the ratio 3:4

    Answer: 57 and 76
  5. 5. Statistics

    Calculate the mean of: 29, 21, 7, 5, 24, 22

    Answer: 18

Wednesday 8 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 2⁄8

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 2x - 11 = 19

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics

    Calculate the mean of: 35, 9, 16, 9, 18, 23, 19, 10. Give your answer to 2 decimal places

    Answer: 17.38

Thursday 9 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄11 + 5⁄11

    Answer: 6⁄11
  2. 2. Algebra

    Solve: 2x + 12 = 20

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 27 in the ratio 2:1

    Answer: 18 and 9
  5. 5. Statistics

    Find the mean of: 2, 5, 14, 15

    Answer: 9

Friday 10 January 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄8 + 6⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 2x + 10 = 30

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics

    Find the mean of: 13, 12, 8

    Answer: 11