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Cornerstone Apr 23 - 29 25 questions
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Monday 23 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 3⁄5

    Answer: 11⁄10
  2. 2. Algebra

    Solve: 2x + 3 = 23

    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

    Divide 252 in the ratio 4:3:2

    Answer: 112, 84 and 56
  5. 5. Statistics

    Find the mean of: 9, 10, 14

    Answer: 11

Tuesday 24 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 6x + 4 = 76

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.8cm
  4. 4. Ratio

    Share 77 in the ratio 3:4

    Answer: 33 and 44
  5. 5. Statistics

    Calculate the mean of: 50, 23, 35, 12, 37, 34, 42, 47

    Answer: 35

Wednesday 25 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 3⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 4x - 11 = 41

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 65 in the ratio 4:1

    Answer: 52 and 13
  5. 5. Statistics

    Find the mean of: 7, 1, 7

    Answer: 5

Thursday 26 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄7 + 2⁄5

    Answer: 24⁄35
  2. 2. Algebra

    Solve: 3x - 5 = 19

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics

    Find the mean of: 24, 15, 2, 15, 4

    Answer: 12

Friday 27 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄12 + 3⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 3 = 31

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 30 in the ratio 1:4

    Answer: 6 and 24
  5. 5. Statistics

    Calculate the mean of: 21, 48, 20, 23, 16, 22, 26, 33. Give your answer to 2 decimal places

    Answer: 26.13