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Cornerstone Feb 15 - 21 25 questions
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Monday 15 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄9 + 2⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 7x - 6 = 99

    Answer: x = 15
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.12cm
  4. 4. Ratio

    Divide 126 in the ratio 1:4:4

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

    Calculate the mean of: 49, 42, 37, 40, 14, 24, 12, 21. Give your answer to 2 decimal places

    Answer: 29.88

Tuesday 16 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄6 + 2⁄3

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 3x - 7 = 29

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Divide 180 in the ratio 1:1:4

    Answer: 30, 30 and 120
  5. 5. Statistics

    Calculate the mean of: 50, 38, 6, 13, 23, 30. Give your answer to 2 decimal places

    Answer: 26.67

Wednesday 17 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 6x + 10 = 46

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.21cm
  4. 4. Ratio

    Divide 162 in the ratio 2:3:4

    Answer: 36, 54 and 72
  5. 5. Statistics

    Find the mean of: 12, 20, 11, 13, 9

    Answer: 13

Thursday 18 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 5⁄12

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 2x + 3 = 13

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Divide 66 in the ratio 1:2:3

    Answer: 11, 22 and 33
  5. 5. Statistics

    Find the mean of: 5, 5, 21, 17

    Answer: 12

Friday 19 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄8 + 3⁄5

    Answer: 29⁄40
  2. 2. Algebra

    Solve: 4x - 6 = 46

    Answer: x = 13
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Divide 110 in the ratio 3:4:3

    Answer: 33, 44 and 33
  5. 5. Statistics

    Calculate the mean of: 37, 48, 8, 46, 14, 35, 27, 25

    Answer: 30