Change pack
Cornerstone Jan 1 - 7 25 questions
PDF (questions) PDF (answers)

Monday 29 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 24 + 74

    Answer: 24 + 74 = 98
  2. 2. Algebra

    Simplify: 6x + 5x

    Answer: 11x
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Find 82% of 381

    Answer: 312.42
  5. 5. Statistics

    Find the mean of: 4, 16, 20

    Answer: 13.333333333333

Tuesday 30 November 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 48 + 29

    Answer: 48 + 29 = 77
  2. 2. Algebra

    Expand: 2(x + 4)

    Answer: 2x + 8
  3. 3. Geometry

    Calculate the perimeter of a right triangle with sides 6cm and 5cm

    Answer: 18.8cm
  4. 4. Ratio

    Simplify: 6:4:8

    Answer: 3:2:4
  5. 5. Statistics

    Find the mean of: 11, 3, 4, 11

    Answer: 7.25

Wednesday 1 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 13 + (-15) + (-8)

    Answer: -10
  2. 2. Algebra

    Solve: x + 14 = 18

    Answer: x = 4
  3. 3. Geometry

    Calculate the area of a circle with diameter 15cm

    Answer: 176.71cm²
  4. 4. Ratio

    Simplify: 6:6:4

    Answer: 3:3:2
  5. 5. Statistics

    Find the mean of: 3, 9, 12, 8

    Answer: 8

Thursday 2 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 92 + 26

    Answer: 92 + 26 = 118
  2. 2. Algebra

    Solve: x + 8 = 27

    Answer: x = 19
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 26cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify: 15:6:12

    Answer: 5:2:4
  5. 5. Statistics

    Find the mean of: 7, 7, 9, 6

    Answer: 7.25

Friday 3 December 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 60 + ? = 150

    Answer: 90
  2. 2. Algebra

    Factorise: 2x² + 3x

    Answer: x(2x + 3)
  3. 3. Geometry

    Opposite = 15cm, adjacent = 19cm. Calculate the angle

    Answer: 38.3°
  4. 4. Ratio

    Simplify: 6:6:18

    Answer: 1:1:3
  5. 5. Statistics

    Calculate the range of: 65, 30, 69, 20, 61, 57

    Answer: 49