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Capstone May 11 - 17 25 questions
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Monday 11 May 2026

Keystones #131 · 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 (2, 9) and coefficient 6

    Answer: y = 6(x - 2)² + 9
  3. 3. Geometry

    Find perimeter: adjacent = 21cm, angle = 50°

    Answer: 78.7cm
  4. 4. Ratio

    55 out of 88 students passed. What percentage passed?

    Answer: 62.5%
  5. 5. Statistics

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

    Answer: 3⁄7

Tuesday 12 May 2026

Keystones #132 · 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 (1, 3) and coefficient 6

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

    Find perimeter: adjacent = 20cm, angle = 31°

    Answer: 55.3cm
  4. 4. Ratio

    40 out of 72 students passed. What percentage passed?

    Answer: 55.6%
  5. 5. Statistics

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

    Answer: 3⁄13

Wednesday 13 May 2026

Keystones #133 · 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, 3) and coefficient 2

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

    Find perimeter: adjacent = 15cm, angle = 58°

    Answer: 67.3cm
  4. 4. Ratio

    53 out of 95 students passed. What percentage passed?

    Answer: 55.8%
  5. 5. Statistics

    A spinner has 2 red, 6 blue and 3 green sections. Probability of landing on red?

    Answer: 2⁄11

Thursday 14 May 2026

Keystones #134 · Five questions · Open this day only

  1. 1. Number

    Simplify: 7√2 - 2√2

    Answer: 5√2
  2. 2. Algebra

    Find equation with turning point (2, 10) and coefficient 3

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

    Find perimeter: adjacent = 14cm, angle = 47°

    Answer: 49.5cm
  4. 4. Ratio

    44 out of 81 students passed. What percentage passed?

    Answer: 54.3%
  5. 5. Statistics

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

    Answer: 2⁄5

Friday 15 May 2026

Keystones #135 · Five questions · Open this day only

  1. 1. Number

    Simplify: 6√3 - 4√3

    Answer: 2√3
  2. 2. Algebra

    Find equation with turning point (3, 5) and coefficient 2

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

    Find perimeter: adjacent = 11cm, angle = 39°

    Answer: 34.cm
  4. 4. Ratio

    55 out of 71 students passed. What percentage passed?

    Answer: 77.5%
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄3