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Capstone Jan 1 - 7 25 questions
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Monday 20 October 2025

Keystones #1 · 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

    Complete the square: x² + 5.6x

    Answer: (x + 2.8)² - 7.84
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 39cm. Find the angle

    Answer: 52°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 12

Tuesday 21 October 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 16 + 36 + 16

    Answer: 56
  2. 2. Algebra

    Solve: x8 = 3.75

    Answer: x = 30
  3. 3. Geometry

    Adjacent = 13cm, hypotenuse = 24cm. Find the angle

    Answer: 57.2°
  4. 4. Ratio

    Calculate 34% of 880

    Answer: 299.2
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 30, 39, 47, what is the missing number?

    Answer: 8

Wednesday 22 October 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 141. What are the numbers?

    Answer: 46, 47, and 48
  2. 2. Algebra

    Complete the square: x² + 2.2x

    Answer: (x + 1.1)² - 1.21
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 21cm. Find the angle

    Answer: 44.4°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 38. If 4 of them are 39, 28, 45, 15, what is the missing number?

    Answer: 63

Thursday 23 October 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 991 + 585

    Answer: 1576
  2. 2. Algebra

    Solve: x6 = 1.1666666666667

    Answer: x = 7
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 36cm. Find the angle

    Answer: 52.3°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 27

Friday 24 October 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 129. What are the numbers?

    Answer: 42, 43, and 44
  2. 2. Algebra

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

    Answer: 21
  3. 3. Geometry

    A right triangle has hypotenuse 17cm and one side 8cm. Find its area

    Answer: 60cm²
  4. 4. Ratio

    Calculate 43.9% of 706

    Answer: 309.93
  5. 5. Statistics

    The mean of 5 numbers is 25. If 4 of them are 45, 15, 20, 25, what is the missing number?

    Answer: 20