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Cornerstone May 12 - 18 25 questions
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Monday 12 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 1⁄4

    Answer: 17⁄20
  2. 2. Algebra

    Solve: 5x + 3 = 63

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 77 in the ratio 3:1:3

    Answer: 33, 11 and 33
  5. 5. Statistics

    Find the mean of: 1, 15, 13, 3, 3

    Answer: 7

Tuesday 13 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄11 + 2⁄11

    Answer: 8⁄11
  2. 2. Algebra

    Solve: 3x - 18 = 15

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 12.81cm
  4. 4. Ratio

    Divide 147 in the ratio 1:3:3

    Answer: 21, 63 and 63
  5. 5. Statistics

    Calculate the mean of: 11, 16, 8, 45, 10, 32, 43, 12. Give your answer to 2 decimal places

    Answer: 22.13

Wednesday 14 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 3⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 8x - 18 = 30

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 5.83cm
  4. 4. Ratio

    Share 60 in the ratio 3:2

    Answer: 36 and 24
  5. 5. Statistics

    Find the mean of: 12, 20, 16, 8

    Answer: 14

Thursday 15 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄7 + 2⁄6

    Answer: 22⁄21
  2. 2. Algebra

    Solve: 7x + 15 = 64

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.65cm
  4. 4. Ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics

    Calculate the mean of: 7, 7, 22, 27, 39, 45

    Answer: 24.5

Friday 16 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 2x + 5 = 19

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio

    Share 95 in the ratio 4:1

    Answer: 76 and 19
  5. 5. Statistics

    Calculate the mean of: 42, 38, 44, 8, 42, 6

    Answer: 30