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Cornerstone Nov 5 - 11 25 questions
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Monday 5 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 13 = 53

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 7cm

    Answer: 8.6cm
  4. 4. Ratio

    Divide 230 in the ratio 1:2:2

    Answer: 46, 92 and 92
  5. 5. Statistics

    Calculate the mean of: 48, 24, 38, 29, 48, 50, 39, 38

    Answer: 39.3

Tuesday 6 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄5 + 2⁄3

    Answer: 19⁄15
  2. 2. Algebra

    Solve: 3x + 4 = 22

    Answer: x = 6
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 11cm

    Answer: 13.6cm
  4. 4. Ratio

    Divide 90 in the ratio 1:3:2

    Answer: 15, 45 and 30
  5. 5. Statistics

    Calculate the mean of: 18, 37, 8, 30, 8, 20, 44

    Answer: 23.6

Wednesday 7 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄12 + 1⁄12

    Answer: 1⁄3
  2. 2. Algebra

    Solve: 2x - 19 = 9

    Answer: x = 14
  3. 3. Geometry

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

    Answer: 17cm
  4. 4. Ratio

    Divide 144 in the ratio 4:2:3

    Answer: 64, 32 and 48
  5. 5. Statistics

    Find the mean of: 6, 8, 3, 13

    Answer: 7.5

Thursday 8 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 2⁄5 + 1⁄5

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 2x - 10 = 6

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 20cm
  4. 4. Ratio

    Divide 210 in the ratio 3:3:1

    Answer: 90, 90 and 30
  5. 5. Statistics

    Find the mean of: 18, 14, 10, 6

    Answer: 12

Friday 9 November 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 1⁄4

    Answer: 5⁄8
  2. 2. Algebra

    Solve: 5x + 13 = 48

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 10cm and b = 12cm

    Answer: 15.62cm
  4. 4. Ratio

    Divide 78 in the ratio 1:2:3

    Answer: 13, 26 and 39
  5. 5. Statistics

    Calculate the mean of: 44, 28, 36, 13, 44, 17, 46

    Answer: 32.6