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Cornerstone Jan 5 - 11 25 questions
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Monday 5 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄11 + 1⁄11

    Answer: 4⁄11
  2. 2. Algebra

    Solve: 4x + 6 = 38

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio

    Share 52 in the ratio 3:1

    Answer: 39 and 13
  5. 5. Statistics

    Find the mean of: 20, 1, 12

    Answer: 11

Tuesday 6 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄5 + 2⁄7

    Answer: 17⁄35
  2. 2. Algebra

    Solve: 3x + 3 = 27

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Share 32 in the ratio 1:3

    Answer: 8 and 24
  5. 5. Statistics

    Find the mean of: 19, 5, 10, 10, 1

    Answer: 9

Wednesday 7 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄10 + 2⁄10

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x - 11 = 13

    Answer: x = 4
  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

    Share 95 in the ratio 1:4

    Answer: 19 and 76
  5. 5. Statistics

    Calculate the mean of: 21, 13, 44, 18, 23, 29. Give your answer to 2 decimal places

    Answer: 24.67

Thursday 8 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 7x - 13 = 29

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics

    Calculate the mean of: 13, 27, 21, 17, 34, 8, 11. Give your answer to 2 decimal places

    Answer: 18.71

Friday 9 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄4 + 4⁄8

    Answer: 5⁄4
  2. 2. Algebra

    Solve: 6x + 5 = 23

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 13cm
  4. 4. Ratio

    Share 72 in the ratio 1:2

    Answer: 24 and 48
  5. 5. Statistics

    Find the mean of: 6, 12, 18, 20

    Answer: 14