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Capstone Mar 23 - 29 25 questions
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Monday 23 March 2026

Keystones #82 · Five questions · Open this day only

  1. 1. Number

    Simplify: 12√5 - 3√5

    Answer: 9√5
  2. 2. Algebra

    Find equation with turning point (4, 9) and coefficient 3

    Answer: y = 3(x - 4)² + 9
  3. 3. Geometry

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

    Answer: 67.3cm
  4. 4. Ratio

    49 out of 72 students passed. What percentage passed?

    Answer: 68.1%
  5. 5. Statistics

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

    Answer: 2⁄5

Tuesday 24 March 2026

Keystones #83 · Five questions · Open this day only

  1. 1. Number

    Simplify: 12√3 - 11√3

    Answer: 1√3
  2. 2. Algebra

    Find equation with turning point (1, 4) and coefficient 6

    Answer: y = 6(x - 1)² + 4
  3. 3. Geometry

    Find perimeter: adjacent = 22cm, angle = 51°

    Answer: 84.2cm
  4. 4. Ratio

    44 out of 77 students passed. What percentage passed?

    Answer: 57.1%
  5. 5. Statistics

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

    Answer: 3⁄10

Wednesday 25 March 2026

Keystones #84 · Five questions · Open this day only

  1. 1. Number

    Simplify: 10√2 - 9√2

    Answer: 1√2
  2. 2. Algebra

    Find equation with turning point (5, 8) and coefficient 2

    Answer: y = 2(x - 5)² + 8
  3. 3. Geometry

    Find perimeter: adjacent = 24cm, angle = 45°

    Answer: 81.9cm
  4. 4. Ratio

    54 out of 82 students passed. What percentage passed?

    Answer: 65.9%
  5. 5. Statistics

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

    Answer: 3⁄8

Thursday 26 March 2026

Keystones #85 · Five questions · Open this day only

  1. 1. Number

    Simplify: 6√2 - 2√2

    Answer: 4√2
  2. 2. Algebra

    Find equation with turning point (1, 9) and coefficient 2

    Answer: y = 2(x - 1)² + 9
  3. 3. Geometry

    Find perimeter: adjacent = 13cm, angle = 56°

    Answer: 55.5cm
  4. 4. Ratio

    39 out of 83 students passed. What percentage passed?

    Answer: 47%
  5. 5. Statistics

    A spinner has 6 red, 4 blue and 3 green sections. Probability of landing on red?

    Answer: 6⁄13

Friday 27 March 2026

Keystones #86 · Five questions · Open this day only

  1. 1. Number

    Simplify: 6√2 - 3√2

    Answer: 3√2
  2. 2. Algebra

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

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

    Find perimeter: adjacent = 11cm, angle = 60°

    Answer: 52.cm
  4. 4. Ratio

    47 out of 100 students passed. What percentage passed?

    Answer: 47%
  5. 5. Statistics

    A spinner has 6 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄2