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Capstone Jun 29 - Jul 5 25 questions
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Monday 29 June 2026

Keystones #180 · Five questions · Open this day only

  1. 1. Number

    Simplify: √8 + √18

    Answer: 2√2 + 3√2 = 5√2
  2. 2. Algebra

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

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

    Find perimeter: adjacent = 21cm, angle = 34°

    Answer: 60.5cm
  4. 4. Ratio

    38 out of 78 students passed. What percentage passed?

    Answer: 48.7%
  5. 5. Statistics

    A spinner has 3 red, 5 blue and 6 green sections. Probability of landing on red?

    Answer: 3⁄14

Tuesday 30 June 2026

Keystones #181 · Five questions · Open this day only

  1. 1. Number

    Simplify: 10√3 - 7√3

    Answer: 3√3
  2. 2. Algebra

    Find equation with turning point (5, 2) and coefficient 4

    Answer: y = 4(x - 5)² + 2
  3. 3. Geometry

    Find perimeter: adjacent = 14cm, angle = 41°

    Answer: 44.8cm
  4. 4. Ratio

    51 out of 91 students passed. What percentage passed?

    Answer: 56%
  5. 5. Statistics

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

    Answer: 2⁄13

Wednesday 1 July 2026

Keystones #182 · Five questions · Open this day only

  1. 1. Number

    Simplify: 6√4 - 2√4

    Answer: 4√4
  2. 2. Algebra

    Find equation with turning point (3, 7) and coefficient 2

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

    Find perimeter: adjacent = 24cm, angle = 32°

    Answer: 67.3cm
  4. 4. Ratio

    40 out of 81 students passed. What percentage passed?

    Answer: 49.4%
  5. 5. Statistics

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

    Answer: 6⁄17

Thursday 2 July 2026

Keystones #183 · Five questions · Open this day only

  1. 1. Number

    Simplify: 11√3 - 7√3

    Answer: 4√3
  2. 2. Algebra

    Find equation with turning point (4, 3) and coefficient 6

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

    Find perimeter: adjacent = 17cm, angle = 44°

    Answer: 57cm
  4. 4. Ratio

    50 out of 85 students passed. What percentage passed?

    Answer: 58.8%
  5. 5. Statistics

    A spinner has 4 red, 4 blue and 2 green sections. Probability of landing on red?

    Answer: 2⁄5

Friday 3 July 2026

Keystones #184 · Five questions · Open this day only

  1. 1. Number

    Simplify: 9√5 - 2√5

    Answer: 7√5
  2. 2. Algebra

    Find equation with turning point (2, 10) and coefficient 5

    Answer: y = 5(x - 2)² + 10
  3. 3. Geometry

    Find perimeter: adjacent = 18cm, angle = 51°

    Answer: 68.8cm
  4. 4. Ratio

    39 out of 93 students passed. What percentage passed?

    Answer: 41.9%
  5. 5. Statistics

    A spinner has 2 red, 4 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄5