Change pack
Cornerstone Feb 21 - 27 25 questions
PDF (questions) PDF (answers)

Monday 21 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 3⁄9 + 1⁄9

    Answer: 4⁄9
  2. 2. Algebra

    Solve: 6x + 9 = 57

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 15.26cm
  4. 4. Ratio

    Divide 68 in the ratio 1:2:1

    Answer: 17, 34 and 17
  5. 5. Statistics

    Find the mean of: 17, 10, 4, 16

    Answer: 11.75

Tuesday 22 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 1⁄3 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 7x + 13 = 34

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 15cm
  4. 4. Ratio

    Divide 120 in the ratio 4:1:1

    Answer: 80, 20 and 20
  5. 5. Statistics

    Find the mean of: 13, 14, 11, 10, 15

    Answer: 12.6

Wednesday 23 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra

    Solve: 2x - 8 = 0

    Answer: x = 4
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio

    Divide 230 in the ratio 4:3:3

    Answer: 92, 69 and 69
  5. 5. Statistics

    Calculate the mean of: 27, 14, 33, 31, 38, 13, 17

    Answer: 24.7

Thursday 24 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra

    Solve: 2x - 11 = 9

    Answer: x = 10
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio

    Share 49 in the ratio 4:3

    Answer: 28 and 21
  5. 5. Statistics

    Find the mean of: 6, 20, 4

    Answer: 10

Friday 25 February 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 4x + 6 = 38

    Answer: x = 8
  3. 3. Geometry

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

    Answer: 37cm
  4. 4. Ratio

    Share 105 in the ratio 4:3

    Answer: 60 and 45
  5. 5. Statistics

    Calculate the mean of: 40, 29, 21, 29, 20, 34, 38

    Answer: 30.1