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Cornerstone Feb 22 - 28 25 questions
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Monday 22 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 4 = 40

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio

    Divide 60 in the ratio 4:1:1

    Answer: 40, 10 and 10
  5. 5. Statistics

    Calculate the mean of: 39, 35, 29, 39, 25, 38, 42. Give your answer to 2 decimal places

    Answer: 35.29

Tuesday 23 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 2⁄3

    Answer: 19⁄15
  2. 2. Algebra

    Solve: 4x - 11 = 45

    Answer: x = 14
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio

    Divide 180 in the ratio 1:1:4

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

    Find the mean of: 13, 12, 8

    Answer: 11

Wednesday 24 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄8

    Answer: 19⁄24
  2. 2. Algebra

    Solve: 8x - 11 = 69

    Answer: x = 10
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics

    Calculate the mean of: 7, 30, 21, 8, 26, 35. Give your answer to 2 decimal places

    Answer: 21.17

Thursday 25 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Solve: 5x + 5 = 50

    Answer: x = 9
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics

    Find the mean of: 12, 20, 4, 12

    Answer: 12

Friday 26 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄7 + 1⁄4

    Answer: 11⁄28
  2. 2. Algebra

    Solve: 7x + 3 = 52

    Answer: x = 7
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Share 35 in the ratio 2:3

    Answer: 14 and 21
  5. 5. Statistics

    Find the mean of: 13, 12, 18, 2, 15

    Answer: 12