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Cornerstone Oct 21 - 27 25 questions
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Monday 21 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄7 + 4⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: 5x + 4 = 29

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 9.22cm
  4. 4. Ratio

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics

    Find the mean of: 10, 22, 4

    Answer: 12

Tuesday 22 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄4

    Answer: 17⁄12
  2. 2. Algebra

    Solve: 7x + 9 = 44

    Answer: x = 5
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 98 in the ratio 3:4

    Answer: 42 and 56
  5. 5. Statistics

    Find the mean of: 20, 3, 4, 17

    Answer: 11

Wednesday 23 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Solve: 6x - 9 = 63

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 9.9cm
  4. 4. Ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics

    Calculate the mean of: 8, 16, 14, 10, 47, 43, 32. Give your answer to 2 decimal places

    Answer: 24.29

Thursday 24 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 6⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x - 9 = 40

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio

    Divide 290 in the ratio 4:3:3

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

    Find the mean of: 18, 7, 5, 2

    Answer: 8

Friday 25 October 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 4⁄6

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 6x + 5 = 71

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Divide 119 in the ratio 4:1:2

    Answer: 68, 17 and 34
  5. 5. Statistics

    Calculate the mean of: 11, 39, 18, 29, 43, 20, 27. Give your answer to 2 decimal places

    Answer: 26.71