Change pack
Cornerstone Oct 11 - 17 25 questions
PDF (questions) PDF (answers)

Monday 11 October 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄4 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra

    Solve: 3x - 20 = 13

    Answer: x = 11
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio

    Share 57 in the ratio 2:1

    Answer: 38 and 19
  5. 5. Statistics

    Find the mean of: 6, 8, 10, 12

    Answer: 9

Tuesday 12 October 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 4⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 5x - 8 = 32

    Answer: x = 8
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 16.55cm
  4. 4. Ratio

    Share 30 in the ratio 2:1

    Answer: 20 and 10
  5. 5. Statistics

    Find the mean of: 8, 13, 14, 5, 10

    Answer: 10

Wednesday 13 October 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 7⁄8 + 6⁄7

    Answer: 97⁄56
  2. 2. Algebra

    Solve: 3x + 4 = 40

    Answer: x = 12
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics

    Calculate the mean of: 33, 19, 39, 30, 9, 27. Give your answer to 2 decimal places

    Answer: 26.17

Thursday 14 October 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 5⁄6 + 6⁄8

    Answer: 19⁄12
  2. 2. Algebra

    Solve: 4x + 13 = 61

    Answer: x = 12
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio

    Divide 168 in the ratio 2:3:1

    Answer: 56, 84 and 28
  5. 5. Statistics

    Find the mean of: 8, 4, 18

    Answer: 10

Friday 15 October 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄12 + 1⁄12

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 6x - 9 = 27

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 7.62cm
  4. 4. Ratio

    Divide 135 in the ratio 3:2:4

    Answer: 45, 30 and 60
  5. 5. Statistics

    Calculate the mean of: 49, 48, 27, 8, 22, 37, 23. Give your answer to 2 decimal places

    Answer: 30.57