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Capstone Jul 16 - 22 25 questions
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Monday 13 July 2026

Keystones #28 · 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

    Find the next term: 1, 4, 10, 19, ...

    Answer: 31
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 34cm. Find the angle

    Answer: 51.9°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 5 red, 3 blue and 4 green sections. Probability of landing on red?

    Answer: 5⁄12

Tuesday 14 July 2026

Keystones #29 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 99. What are the numbers?

    Answer: 32, 33, and 34
  2. 2. Algebra

    Simplify: 24x²y³ ÷ 5xy²

    Answer: 4.8xy
  3. 3. Geometry

    A right triangle has hypotenuse 10cm and one side 6cm. Find its area

    Answer: 24cm²
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    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

Wednesday 15 July 2026

Keystones #30 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 117. What are the numbers?

    Answer: 38, 39, and 40
  2. 2. Algebra

    Find the next term: 1, 2, 4, 7, ...

    Answer: 11
  3. 3. Geometry

    Adjacent = 13cm, hypotenuse = 19cm. Find the angle

    Answer: 46.8°
  4. 4. Ratio

    Calculate 20.7% of 755

    Answer: 156.29
  5. 5. Statistics

    The mean of 5 numbers is 21. If 4 of them are 28, 22, 26, 27, what is the missing number?

    Answer: 2

Thursday 16 July 2026

Keystones #31 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 147. What are the numbers?

    Answer: 48, 49, and 50
  2. 2. Algebra

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

    Answer: 21
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 31cm. Find the angle

    Answer: 36.2°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 6 numbers is 34. If 5 of them are 28, 33, 39, 38, 33, what is the missing number?

    Answer: 33

Friday 17 July 2026

Keystones #32 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 896

    Answer: 1892
  2. 2. Algebra

    Solve: x⁄3 = 2.3333333333333

    Answer: x = 7
  3. 3. Geometry

    A right triangle has hypotenuse 13cm and one side 5cm. Find its area

    Answer: 30cm²
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 1⁄2