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Capstone May 14 - 20 25 questions
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Monday 11 May 2026

Keystones #131 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 114. What are the numbers?

    Answer: 37, 38, and 39
  2. 2. Algebra

    Simplify: 29x²y³ ÷ 3xy²

    Answer: 9.6666666666667xy
  3. 3. Geometry

    Find c if a = 8cm and b = 13cm in a right triangle

    Answer: 15.3cm
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 3⁄11

Tuesday 12 May 2026

Keystones #132 · Five questions · Open this day only

  1. 1. Number

    If x3 = 64, what is x?

    Answer: 4
  2. 2. Algebra

    Solve: x⁄3 = 13

    Answer: x = 39
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 49cm. Find the angle

    Answer: 52.2°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 1⁄6

Wednesday 13 May 2026

Keystones #133 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 150. What are the numbers?

    Answer: 49, 50, and 51
  2. 2. Algebra

    Find the next term: 1, 3, 7, 13, ...

    Answer: 21
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 24cm. Find the angle

    Answer: 48.2°
  4. 4. Ratio

    Calculate 36.9% of 453

    Answer: 167.16
  5. 5. Statistics

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

    Answer: 3⁄8

Thursday 14 May 2026

Keystones #134 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 105. What are the numbers?

    Answer: 34, 35, and 36
  2. 2. Algebra

    Solve: x⁄2 = 10

    Answer: x = 20
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 33cm. Find the angle

    Answer: 43.3°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 2⁄11

Friday 15 May 2026

Keystones #135 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 126. What are the numbers?

    Answer: 41, 42, and 43
  2. 2. Algebra

    Simplify: 8x - 5x + 6y - 2y

    Answer: 3x + 4y
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 32cm. Find the angle

    Answer: 51.3°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 1⁄6