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Cornerstone Jan 1 - 7 25 questions
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Monday 1 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 194 + 979

    Answer: 194 + 979 = 1173
  2. 2. Algebra

    Solve: 7x + 7 = 4x + 34

    Answer: x = 9
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Simplify the ratio 10:4

    Answer: 5:2
  5. 5. Statistics

    Find the range of: 38, 38, 18, 20, 23

    Answer: 20

Tuesday 2 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    60000

    Answer: 6 × 104
  2. 2. Algebra

    Solve: x + 5 = 20

    Answer: x = 15
  3. 3. Geometry

    Calculate the area of a circle with diameter 14cm

    Answer: 153.94cm²
  4. 4. Ratio

    Calculate 50% of 100

    Answer: 50
  5. 5. Statistics

    Find the mean of: 16, 17, 12, 8, 5

    Answer: 11.6

Wednesday 3 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 94 + ? = 177

    Answer: 83
  2. 2. Algebra

    Solve: 4x = 20

    Answer: x = 5
  3. 3. Geometry

    Find the distance between (2, 2) and (7, 7)

    Answer: 7.07
  4. 4. Ratio

    Calculate 50% of 33

    Answer: 16.5
  5. 5. Statistics

    Calculate the range of: 72, 90, 90, 27, 67, 61

    Answer: 63

Thursday 4 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 45 + 13

    Answer: 1715
  2. 2. Algebra

    Collect like terms: 7x + 2y + 8x + 2y

    Answer: 15x + 4y
  3. 3. Geometry

    Find the area of a circle with radius 7cm

    Answer: 153.94cm²
  4. 4. Ratio

    Simplify: 8:6:8

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

    Find the mean of: 13, 8, 6, 12, 2

    Answer: 8.2

Friday 5 August 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 15 + 15

    Answer: 25
  2. 2. Algebra

    Find the next term: 9, 14, 19, 24, ...

    Answer: 29
  3. 3. Geometry

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

    Answer: 57°
  4. 4. Ratio

    Simplify: 24:16:12

    Answer: 6:4:3
  5. 5. Statistics

    Calculate the range of: 50, 61, 115, 50, 65, 83

    Answer: 65