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Cornerstone Mar 3 - 9 25 questions
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Monday 3 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 6⁄10 + 3⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 6x + 7 = 79

    Answer: x = 12
  3. 3. Geometry

    Calculate the hypotenuse when a = 11cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio

    Divide 232 in the ratio 2:3:3

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

    Find the mean of: 8, 24, 10

    Answer: 14

Tuesday 4 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄8 + 2⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 3x + 15 = 36

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics

    Calculate the mean of: 31, 32, 24, 41, 32, 45, 47, 41. Give your answer to 2 decimal places

    Answer: 36.63

Wednesday 5 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 3⁄7

    Answer: 23⁄21
  2. 2. Algebra

    Solve: 8x - 6 = 74

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 100 in the ratio 4:1

    Answer: 80 and 20
  5. 5. Statistics

    Find the mean of: 10, 19, 7

    Answer: 12

Thursday 6 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄10 + 6⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 4x - 6 = 30

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 17.49cm
  4. 4. Ratio

    Share 65 in the ratio 2:3

    Answer: 26 and 39
  5. 5. Statistics

    Find the mean of: 15, 4, 9, 8

    Answer: 9

Friday 7 March 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 6⁄8

    Answer: 1⁄1
  2. 2. Algebra

    Solve: 6x + 4 = 34

    Answer: x = 5
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Share 55 in the ratio 4:1

    Answer: 44 and 11
  5. 5. Statistics

    Calculate the mean of: 38, 33, 40, 13, 37, 39. Give your answer to 2 decimal places

    Answer: 33.33