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Cornerstone Jan 1 - 7 25 questions
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Monday 1 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 764 + 113

    Answer: 764 + 113 = 877
  2. 2. Algebra

    Collect like terms: 6x + 6y + 8x + 7y

    Answer: 14x + 13y
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

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

    Calculate 25% of 104

    Answer: 26
  5. 5. Statistics

    Find the range of: 19, 22, 16, 13, 26

    Answer: 13

Tuesday 2 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 85 + 98

    Answer: 85 + 98 = 183
  2. 2. Algebra

    What is the next term? 2, 8, 32, 128, ...

    Answer: 512
  3. 3. Geometry

    Calculate the area of a circle with diameter 19cm

    Answer: 283.53cm²
  4. 4. Ratio

    Calculate 25% of 120

    Answer: 30
  5. 5. Statistics

    Find the range of: 20, 42, 31, 31, 42

    Answer: 22

Wednesday 3 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 63 + ? = 114

    Answer: 51
  2. 2. Algebra

    Solve: x + 12 = 26

    Answer: x = 14
  3. 3. Geometry

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify the ratio 12:16

    Answer: 3:4
  5. 5. Statistics

    Calculate the mean of: 21, 47, 17, 49, 33, 24

    Answer: 31.8

Thursday 4 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 461 + 594

    Answer: 461 + 594 = 1055
  2. 2. Algebra

    Factorise: 12x + 24

    Answer: 4(3x + 6)
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 15.6cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Find 30% of 441

    Answer: 132.3
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 12

Friday 5 July 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 70 + 28

    Answer: 70 + 28 = 98
  2. 2. Algebra

    Expand: 5(2x + 2)

    Answer: 10x + 10
  3. 3. Geometry

    Calculate the area of a circle with diameter 12cm

    Answer: 113.cm²
  4. 4. Ratio

    Simplify: 15:12:6

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

    Calculate the range of: 49, 39, 79, 79, 79, 64

    Answer: 40