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Capstone Aug 17 - 23 25 questions
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Monday 17 August 2026

Keystones #229 · Five questions · Open this day only

  1. 1. Number

    Simplify: 9√2 - 2√2

    Answer: 7√2
  2. 2. Algebra

    Find equation with turning point (4, 2) and coefficient 6

    Answer: y = 6(x - 4)² + 2
  3. 3. Geometry

    Find perimeter: adjacent = 21cm, angle = 32°

    Answer: 58.9cm
  4. 4. Ratio

    52 out of 87 students passed. What percentage passed?

    Answer: 59.8%
  5. 5. Statistics

    A spinner has 4 red, 3 blue and 3 green sections. Probability of landing on red?

    Answer: 2⁄5

Tuesday 18 August 2026

Keystones #230 · Five questions · Open this day only

  1. 1. Number

    Simplify: 9√4 - 4√4

    Answer: 5√4
  2. 2. Algebra

    Find equation with turning point (2, 10) and coefficient 6

    Answer: y = 6(x - 2)² + 10
  3. 3. Geometry

    Find perimeter: adjacent = 16cm, angle = 39°

    Answer: 49.6cm
  4. 4. Ratio

    36 out of 93 students passed. What percentage passed?

    Answer: 38.7%
  5. 5. Statistics

    A spinner has 6 red, 6 blue and 6 green sections. Probability of landing on red?

    Answer: 1⁄3

Wednesday 19 August 2026

Keystones #231 · Five questions · Open this day only

  1. 1. Number

    Simplify: 11√4 - 10√4

    Answer: 1√4
  2. 2. Algebra

    Find equation with turning point (1, 7) and coefficient 4

    Answer: y = 4(x - 1)² + 7
  3. 3. Geometry

    Find perimeter: adjacent = 14cm, angle = 43°

    Answer: 46.2cm
  4. 4. Ratio

    40 out of 96 students passed. What percentage passed?

    Answer: 41.7%
  5. 5. Statistics

    A spinner has 3 red, 3 blue and 3 green sections. Probability of landing on red?

    Answer: 1⁄3

Thursday 20 August 2026

Keystones #232 · Five questions · Open this day only

  1. 1. Number

    Simplify: 7√5 - 5√5

    Answer: 2√5
  2. 2. Algebra

    Find equation with turning point (3, 5) and coefficient 6

    Answer: y = 6(x - 3)² + 5
  3. 3. Geometry

    Find perimeter: adjacent = 21cm, angle = 54°

    Answer: 85.6cm
  4. 4. Ratio

    50 out of 98 students passed. What percentage passed?

    Answer: 51%
  5. 5. Statistics

    A spinner has 2 red, 5 blue and 6 green sections. Probability of landing on red?

    Answer: 2⁄13

Friday 21 August 2026

Keystones #233 · Five questions · Open this day only

  1. 1. Number

    Simplify: 12√4 - 4√4

    Answer: 8√4
  2. 2. Algebra

    Find equation with turning point (5, 7) and coefficient 6

    Answer: y = 6(x - 5)² + 7
  3. 3. Geometry

    Find perimeter: adjacent = 17cm, angle = 32°

    Answer: 47.6cm
  4. 4. Ratio

    43 out of 77 students passed. What percentage passed?

    Answer: 55.8%
  5. 5. Statistics

    A spinner has 3 red, 5 blue and 2 green sections. Probability of landing on red?

    Answer: 3⁄10