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Capstone Feb 12 - 18 25 questions
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Monday 16 February 2026

Keystones #47 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 642

    Answer: 1638
  2. 2. Algebra

    Solve: x⁄5 = 1.4

    Answer: x = 7
  3. 3. Geometry

    Find c if a = 17cm and b = 19cm in a right triangle

    Answer: 25.5cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 3⁄10

Tuesday 17 February 2026

Keystones #48 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 132. What are the numbers?

    Answer: 43, 44, and 45
  2. 2. Algebra

    Solve: x⁄3 = 6.3333333333333

    Answer: x = 19
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 43cm. Find the angle

    Answer: 45.8°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 4⁄11

Wednesday 18 February 2026

Keystones #49 · 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

    Simplify: 15x²y³ ÷ 6xy²

    Answer: 2.5xy
  3. 3. Geometry

    A right triangle has hypotenuse 5cm and one side 3cm. Find its area

    Answer: 6cm²
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 1⁄6

Thursday 19 February 2026

Keystones #50 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 93. What are the numbers?

    Answer: 30, 31, and 32
  2. 2. Algebra

    Solve: x⁄5 = 4.2

    Answer: x = 21
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 38cm. Find the angle

    Answer: 56.5°
  4. 4. Ratio

    Calculate 22.1% of 938

    Answer: 207.3
  5. 5. Statistics

    The mean of 4 numbers is 37. If 3 of them are 46, 34, 46, what is the missing number?

    Answer: 22

Friday 20 February 2026

Keystones #51 · Five questions · Open this day only

  1. 1. Number

    Calculate: 4⁄6 + 1⁄2 + 1⁄3

    Answer: 3⁄2
  2. 2. Algebra

    Factorise fully: 24x² + 12x

    Answer: 4x(6x + 3)
  3. 3. Geometry

    Adjacent = 14cm, hypotenuse = 30cm. Find the angle

    Answer: 62.2°
  4. 4. Ratio

    Calculate 26.6% of 302

    Answer: 80.33
  5. 5. Statistics

    The mean of 5 numbers is 37. If 4 of them are 50, 20, 43, 33, what is the missing number?

    Answer: 39