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Cornerstone Jan 12 - 18 25 questions
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Monday 12 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄8 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: 3x - 16 = -1

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio

    Share 55 in the ratio 3:2

    Answer: 33 and 22
  5. 5. Statistics

    Calculate the mean of: 25, 10, 19, 48, 7, 31, 9. Give your answer to 2 decimal places

    Answer: 21.29

Tuesday 13 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 8⁄12 + 2⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 6x + 4 = 52

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Share 35 in the ratio 4:3

    Answer: 20 and 15
  5. 5. Statistics

    Find the mean of: 14, 10, 12

    Answer: 12

Wednesday 14 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Solve: 2x + 12 = 28

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 180 in the ratio 1:1:4

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

    Calculate the mean of: 29, 17, 31, 41, 17, 48

    Answer: 30.5

Thursday 15 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 4⁄6

    Answer: 4⁄3
  2. 2. Algebra

    Solve: 3x - 17 = -5

    Answer: x = 4
  3. 3. Geometry

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio

    Divide 192 in the ratio 4:3:1

    Answer: 96, 72 and 24
  5. 5. Statistics

    Find the mean of: 22, 8, 2, 5, 3

    Answer: 8

Friday 16 January 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 5x - 13 = 57

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Divide 112 in the ratio 4:2:1

    Answer: 64, 32 and 16
  5. 5. Statistics

    Find the mean of: 12, 17, 13, 12, 16

    Answer: 14