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Cornerstone Jan 1 - 7 25 questions
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Monday 6 May 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 144, 279, and 62

    Answer: 485
  2. 2. Algebra

    Factorise: 10x + 6

    Answer: 2(5x + 3)
  3. 3. Geometry

    Calculate the area of a circle with diameter 8cm

    Answer: 50.27cm²
  4. 4. Ratio

    Find 44% of 209

    Answer: 91.96
  5. 5. Statistics

    Calculate the mean of: 45, 11, 45, 41, 18, 43, 42

    Answer: 35

Tuesday 7 May 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 43 + 96

    Answer: 43 + 96 = 139
  2. 2. Algebra

    Factorise: 7x² + 6x

    Answer: x(7x + 6)
  3. 3. Geometry

    Find the perimeter of a right triangle with sides 6cm and 8cm

    Answer: 24cm
  4. 4. Ratio

    Simplify: 6:4:10

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

    Find the range of: 35, 35, 33, 33, 9

    Answer: 26

Wednesday 8 May 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 15 + 15

    Answer: 25
  2. 2. Algebra

    For y = x³ + 5, calculate y when x = 3

    Answer: y = 32
  3. 3. Geometry

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Find 34% of 108

    Answer: 36.72
  5. 5. Statistics

    Find the mean of: 12, 13, 18

    Answer: 14.333333333333

Thursday 9 May 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is 6.5 + 1.63 + 0.57?

    Answer: 6.5 + 1.63 + 0.57 = 8.7
  2. 2. Algebra

    Solve: 6x + 9 = x + 64

    Answer: x = 11
  3. 3. Geometry

    Opposite = 20cm, adjacent = 13cm. Calculate the angle

    Answer: 57°
  4. 4. Ratio

    Simplify: 20:24:20

    Answer: 5:6:5
  5. 5. Statistics

    Calculate the mean of: 29, 38, 41, 10, 47, 42, 7, 27

    Answer: 30.1

Friday 10 May 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 874 + 706

    Answer: 874 + 706 = 1580
  2. 2. Algebra

    Solve: x + 10 = 29

    Answer: x = 19
  3. 3. Geometry

    Find the perimeter of a right triangle with sides 6cm and 8cm

    Answer: 24cm
  4. 4. Ratio

    Simplify: 8:16:12

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

    Calculate the range of: 34, 54, 29, 61, 52, 25

    Answer: 36