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Cornerstone Feb 1 - 7 25 questions
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Monday 1 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x + 6 = 46

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio

    Divide 171 in the ratio 4:3:2

    Answer: 76, 57 and 38
  5. 5. Statistics

    Find the mean of: 12, 8, 11, 25

    Answer: 14

Tuesday 2 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄7 + 1⁄5

    Answer: 17⁄35
  2. 2. Algebra

    Solve: 6x + 15 = 81

    Answer: x = 11
  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

    Divide 104 in the ratio 1:2:1

    Answer: 26, 52 and 26
  5. 5. Statistics

    Find the mean of: 14, 11, 3, 10, 7

    Answer: 9

Wednesday 3 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄5 + 1⁄5

    Answer: 2⁄5
  2. 2. Algebra

    Solve: 8x - 14 = 98

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 39cm
  4. 4. Ratio

    Divide 132 in the ratio 1:4:1

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

    Calculate the mean of: 8, 19, 18, 47, 44, 12. Give your answer to 2 decimal places

    Answer: 24.67

Thursday 4 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄11 + 5⁄11

    Answer: 9⁄11
  2. 2. Algebra

    Solve: 7x - 20 = 57

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 41cm
  4. 4. Ratio

    Share 55 in the ratio 4:1

    Answer: 44 and 11
  5. 5. Statistics

    Find the mean of: 24, 15, 14, 7

    Answer: 15

Friday 5 February 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄5 + 2⁄8

    Answer: 21⁄20
  2. 2. Algebra

    Solve: 7x + 3 = 38

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 9.49cm
  4. 4. Ratio

    Share 48 in the ratio 2:1

    Answer: 32 and 16
  5. 5. Statistics

    Calculate the mean of: 6, 28, 19, 31, 17, 40, 23, 40

    Answer: 25.5