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Cornerstone Apr 1 - 7 25 questions
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Monday 1 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 2⁄4

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 3x - 14 = 19

    Answer: x = 11
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 16.55cm
  4. 4. Ratio

    Divide 44 in the ratio 1:1:2

    Answer: 11, 11 and 22
  5. 5. Statistics

    Find the mean of: 16, 3, 20

    Answer: 13

Tuesday 2 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 6⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 6x - 10 = 62

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 192 in the ratio 3:2:3

    Answer: 72, 48 and 72
  5. 5. Statistics

    Find the mean of: 13, 19, 18, 10

    Answer: 15

Wednesday 3 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄6 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra

    Solve: 2x + 11 = 31

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio

    Divide 192 in the ratio 1:3:4

    Answer: 24, 72 and 96
  5. 5. Statistics

    Calculate the mean of: 31, 32, 22, 42, 47, 20, 48. Give your answer to 2 decimal places

    Answer: 34.57

Thursday 4 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 1⁄3

    Answer: 11⁄24
  2. 2. Algebra

    Solve: 2x + 9 = 23

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.07cm
  4. 4. Ratio

    Share 30 in the ratio 4:1

    Answer: 24 and 6
  5. 5. Statistics

    Find the mean of: 18, 6, 4, 12, 15

    Answer: 11

Friday 5 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 1⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 7x - 12 = 58

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics

    Calculate the mean of: 28, 29, 10, 32, 27, 21, 26, 41

    Answer: 26.75