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Cornerstone Oct 22 - 28 25 questions
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Monday 22 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 1⁄6

    Answer: 1⁄3
  2. 2. Algebra

    Solve: 7x + 4 = 60

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Share 80 in the ratio 4:1

    Answer: 64 and 16
  5. 5. Statistics

    Find the mean of: 8, 20, 14

    Answer: 14

Tuesday 23 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 2⁄6

    Answer: 13⁄12
  2. 2. Algebra

    Solve: 6x - 6 = 54

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio

    Share 35 in the ratio 2:3

    Answer: 14 and 21
  5. 5. Statistics

    Calculate the mean of: 40, 29, 34, 41, 44, 38, 16. Give your answer to 2 decimal places

    Answer: 34.57

Wednesday 24 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 4⁄7

    Answer: 81⁄56
  2. 2. Algebra

    Solve: 4x - 17 = 3

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.03cm
  4. 4. Ratio

    Divide 132 in the ratio 3:2:1

    Answer: 66, 44 and 22
  5. 5. Statistics

    Find the mean of: 9, 9, 15

    Answer: 11

Thursday 25 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 3⁄12

    Answer: 11⁄12
  2. 2. Algebra

    Solve: 7x + 12 = 68

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 261 in the ratio 2:3:4

    Answer: 58, 87 and 116
  5. 5. Statistics

    Calculate the mean of: 8, 26, 5, 44, 19, 46, 7. Give your answer to 2 decimal places

    Answer: 22.14

Friday 26 October 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 4⁄8

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 7x + 3 = 66

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 15.62cm
  4. 4. Ratio

    Divide 84 in the ratio 1:1:4

    Answer: 14, 14 and 56
  5. 5. Statistics

    Calculate the mean of: 47, 44, 11, 45, 23, 43, 43. Give your answer to 2 decimal places

    Answer: 36.57