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Capstone Jan 1 - 7 25 questions
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Monday 10 January 2022

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

    Simplify: 10x - 5x + 10y - 3y

    Answer: 5x + 7y
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 30cm. Find the angle

    Answer: 33.6°
  4. 4. Ratio

    Calculate 17.1% of 380

    Answer: 64.98
  5. 5. Statistics

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

    Answer: 13

Tuesday 11 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 90. What are the numbers?

    Answer: 29, 30, and 31
  2. 2. Algebra

    Simplify: 6x - 2x + 4y - 2y

    Answer: 4x + 2y
  3. 3. Geometry

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

    Answer: 60cm²
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 24. If 4 of them are 33, 40, 20, 49, what is the missing number?

    Answer: -22

Wednesday 12 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 12 + 16 + 23

    Answer: 43
  2. 2. Algebra

    Simplify: 7x - 3x + 10y - 8y

    Answer: 4x + 2y
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 32cm. Find the angle

    Answer: 38.6°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 5 numbers is 26. If 4 of them are 36, 47, 48, 40, what is the missing number?

    Answer: -41

Thursday 13 January 2022

Keystones #1 · 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

    Simplify: 12x - 7x + 3y - 2y

    Answer: 5x + y
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 37cm. Find the angle

    Answer: 53.5°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 13

Friday 14 January 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 123. What are the numbers?

    Answer: 40, 41, and 42
  2. 2. Algebra

    Factorise fully: 12x² + 15x

    Answer: 3x(4x + 5)
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 35cm. Find the angle

    Answer: 44.4°
  4. 4. Ratio

    Calculate 27.3% of 741

    Answer: 202.29
  5. 5. Statistics

    A spinner has 3 red, 5 blue and 6 green sections. Probability of landing on red?

    Answer: 314