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Cornerstone Jul 4 - 10 25 questions
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Monday 4 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 1⁄8

    Answer: 11⁄24
  2. 2. Algebra

    Solve: 3x + 7 = 28

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.64cm
  4. 4. Ratio

    Share 140 in the ratio 3:4

    Answer: 60 and 80
  5. 5. Statistics

    Calculate the mean of: 22, 17, 23, 8, 49, 31

    Answer: 25

Tuesday 5 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: 7x - 9 = 26

    Answer: x = 5
  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

    Find the mean of: 7, 12, 5

    Answer: 8

Wednesday 6 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 5⁄6

    Answer: 29⁄24
  2. 2. Algebra

    Solve: 3x - 10 = 23

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.81cm
  4. 4. Ratio

    Share 25 in the ratio 4:1

    Answer: 20 and 5
  5. 5. Statistics

    Find the mean of: 10, 6, 14

    Answer: 10

Thursday 7 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 5⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 7x + 11 = 53

    Answer: x = 6
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 100 in the ratio 1:4

    Answer: 20 and 80
  5. 5. Statistics

    Calculate the mean of: 25, 8, 17, 8, 33, 35, 29. Give your answer to 2 decimal places

    Answer: 22.14

Friday 8 July 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 2x + 7 = 23

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics

    Calculate the mean of: 30, 30, 5, 14, 45, 39, 9. Give your answer to 2 decimal places

    Answer: 24.57