Change pack
Cornerstone Oct 19 - 25 25 questions
PDF (questions) PDF (answers)

Monday 19 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 2⁄4

    Answer: 15⁄14
  2. 2. Algebra

    Solve: 6x + 11 = 59

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio

    Share 30 in the ratio 4:1

    Answer: 24 and 6
  5. 5. Statistics

    Calculate the mean of: 28, 7, 7, 50, 15, 41, 36

    Answer: 26.3

Tuesday 20 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄10 + 1⁄10

    Answer: 3⁄5
  2. 2. Algebra

    Solve: 5x + 9 = 34

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 5cm

    Answer: 9.43cm
  4. 4. Ratio

    Share 105 in the ratio 4:3

    Answer: 60 and 45
  5. 5. Statistics

    Find the mean of: 12, 9, 18

    Answer: 13

Wednesday 21 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄6 + 6⁄7

    Answer: 19⁄14
  2. 2. Algebra

    Solve: 6x - 16 = 32

    Answer: x = 8
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Share 21 in the ratio 2:1

    Answer: 14 and 7
  5. 5. Statistics

    Calculate the mean of: 42, 39, 36, 31, 49, 28

    Answer: 37.5

Thursday 22 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄10 + 2⁄10

    Answer: 9⁄10
  2. 2. Algebra

    Solve: 6x - 19 = 65

    Answer: x = 14
  3. 3. Geometry

    Calculate the hypotenuse when a = 4cm and b = 15cm

    Answer: 15.52cm
  4. 4. Ratio

    Share 95 in the ratio 4:1

    Answer: 76 and 19
  5. 5. Statistics

    Calculate the mean of: 13, 28, 32, 38, 36, 41

    Answer: 31.3

Friday 23 October 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄4 + 1⁄3

    Answer: 7⁄12
  2. 2. Algebra

    Solve: 4x + 15 = 27

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio

    Share 36 in the ratio 3:1

    Answer: 27 and 9
  5. 5. Statistics

    Find the mean of: 19, 14, 14

    Answer: 15.666666666667