Change pack
Cornerstone Jan 28 - Feb 3 25 questions
PDF (questions) PDF (answers)

Monday 28 January 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄8 + 3⁄7

    Answer: 19⁄28
  2. 2. Algebra

    Solve: 3x - 5 = 25

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 6cm

    Answer: 7.81cm
  4. 4. Ratio

    Divide 308 in the ratio 4:4:3

    Answer: 112, 112 and 84
  5. 5. Statistics

    Calculate the mean of: 12, 43, 35, 41, 9, 45, 29, 26

    Answer: 30

Tuesday 29 January 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 7⁄10 + 1⁄10

    Answer: 4⁄5
  2. 2. Algebra

    Solve: 2x + 12 = 26

    Answer: x = 7
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Divide 243 in the ratio 4:2:3

    Answer: 108, 54 and 81
  5. 5. Statistics

    Find the mean of: 12, 4, 19

    Answer: 11.666666666667

Wednesday 30 January 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 1⁄10 + 2⁄10

    Answer: 3⁄10
  2. 2. Algebra

    Solve: 6x + 4 = 34

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 8cm and b = 13cm

    Answer: 15.26cm
  4. 4. Ratio

    Divide 135 in the ratio 2:3:4

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

    Find the mean of: 7, 18, 13, 7

    Answer: 11.25

Thursday 31 January 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 4⁄7 + 3⁄6

    Answer: 15⁄14
  2. 2. Algebra

    Solve: 5x - 17 = 28

    Answer: x = 9
  3. 3. Geometry

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

    Answer: 5cm
  4. 4. Ratio

    Divide 280 in the ratio 1:2:2

    Answer: 56, 112 and 112
  5. 5. Statistics

    Calculate the mean of: 7, 18, 23, 40, 10, 8, 18

    Answer: 17.7

Friday 1 February 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 3⁄5

    Answer: 39⁄40
  2. 2. Algebra

    Solve: 4x + 4 = 24

    Answer: x = 5
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 6cm

    Answer: 6.71cm
  4. 4. Ratio

    Divide 225 in the ratio 4:1:4

    Answer: 100, 25 and 100
  5. 5. Statistics

    Find the mean of: 6, 20, 3, 15

    Answer: 11