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Cornerstone Nov 18 - 24 25 questions
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Monday 18 November 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 27 + 17

    Answer: 37
  2. 2. Algebra

    Solve: 4x + 15 = 59

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Share 80 in the ratio 2:3

    Answer: 32 and 48
  5. 5. Statistics

    Find the mean of: 12, 13, 18, 16

    Answer: 14.75

Tuesday 19 November 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 14 + 17

    Answer: 1128
  2. 2. Algebra

    Solve: 3x - 14 = 7

    Answer: x = 7
  3. 3. Geometry

    Calculate the hypotenuse when a = 9cm and b = 8cm

    Answer: 12.04cm
  4. 4. Ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics

    Calculate the mean of: 5, 6, 34, 43, 6, 41

    Answer: 22.5

Wednesday 20 November 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 37 + 17

    Answer: 47
  2. 2. Algebra

    Solve: 2x - 20 = 6

    Answer: x = 13
  3. 3. Geometry

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

    Answer: 29cm
  4. 4. Ratio

    Share 77 in the ratio 4:3

    Answer: 44 and 33
  5. 5. Statistics

    Find the mean of: 2, 18, 18

    Answer: 12.666666666667

Thursday 21 November 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 23 + 18

    Answer: 1924
  2. 2. Algebra

    Solve: 7x + 13 = 76

    Answer: x = 9
  3. 3. Geometry

    Calculate the hypotenuse when a = 12cm and b = 13cm

    Answer: 17.69cm
  4. 4. Ratio

    Share 90 in the ratio 1:2

    Answer: 30 and 60
  5. 5. Statistics

    Calculate the mean of: 22, 30, 23, 10, 32, 29, 43

    Answer: 27

Friday 22 November 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 112 + 612

    Answer: 712
  2. 2. Algebra

    Solve: 6x + 12 = 78

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 25cm
  4. 4. Ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics

    Calculate the mean of: 26, 16, 39, 33, 35, 10

    Answer: 26.5