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Cornerstone Jul 7 - 13 25 questions
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Monday 7 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 2⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x - 16 = 32

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 5cm

    Answer: 13cm
  4. 4. Ratio

    Divide 319 in the ratio 4:4:3

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

    Find the mean of: 25, 14, 3

    Answer: 14

Tuesday 8 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄11 + 1⁄11

    Answer: 6⁄11
  2. 2. Algebra

    Solve: 5x - 5 = 55

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 6cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio

    Divide 250 in the ratio 4:3:3

    Answer: 100, 75 and 75
  5. 5. Statistics

    Find the mean of: 10, 14, 12

    Answer: 12

Wednesday 9 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 2⁄4

    Answer: 7⁄10
  2. 2. Algebra

    Solve: 6x + 9 = 57

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 132 in the ratio 2:1:3

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

    Calculate the mean of: 14, 39, 36, 30, 20, 31, 23, 37

    Answer: 28.75

Thursday 10 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 2⁄4

    Answer: 11⁄10
  2. 2. Algebra

    Solve: 3x + 7 = 25

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio

    Divide 198 in the ratio 1:4:4

    Answer: 22, 88 and 88
  5. 5. Statistics

    Calculate the mean of: 7, 34, 49, 13, 5, 20, 43. Give your answer to 2 decimal places

    Answer: 24.43

Friday 11 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 7x - 17 = 53

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 140 in the ratio 4:2:1

    Answer: 80, 40 and 20
  5. 5. Statistics

    Find the mean of: 5, 10, 12, 13

    Answer: 10