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Lintel Jan 1 - 7 25 questions
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Monday 25 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 96. What are the numbers?

    Answer: 31, 32, and 33
  2. 2. Algebra

    Solve: x6 = 2

    Answer: x = 12
  3. 3. Geometry

    Find perimeter: adjacent = 19cm, angle = 36°

    Answer: 56.3cm
  4. 4. Ratio

    Find 43% of 410

    Answer: 176.3
  5. 5. Statistics

    A bag has 5 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 511

Tuesday 26 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 89 + ? = 168

    Answer: 79
  2. 2. Algebra

    Factorise fully: 35x² + 10x

    Answer: 5x(7x + 2)
  3. 3. Geometry

    Opposite = 13cm, adjacent = 17cm. Calculate the angle

    Answer: 37.4°
  4. 4. Ratio

    Simplify: 12:8:4

    Answer: 3:2:1
  5. 5. Statistics

    A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 715

Wednesday 27 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 995 + 806

    Answer: 1801
  2. 2. Algebra

    What is the next term? 4, 8, 16, 32, ...

    Answer: 64
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 35cm. Find the angle

    Answer: 34°
  4. 4. Ratio

    Find 78% of 87

    Answer: 67.86
  5. 5. Statistics

    Find the range of: 23, 12, 13, -14, 3

    Answer: 37

Thursday 28 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: y3 × y2 × y4

    Answer: y9
  2. 2. Algebra

    Solve: 9x = 99

    Answer: x = 11
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 31cm. Find the angle

    Answer: 49.8°
  4. 4. Ratio

    Simplify: 18:9:15

    Answer: 6:3:5
  5. 5. Statistics

    A spinner has 3 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 313

Friday 29 July 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 72 + ? = 182

    Answer: 110
  2. 2. Algebra

    Solve: x5 = 2

    Answer: x = 10
  3. 3. Geometry

    Calculate the area of a circle with diameter 8cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify: 9:6:9

    Answer: 3:2:3
  5. 5. Statistics

    Calculate the mean of: 6, 31, 30, 27, 12, 40, 34

    Answer: 25.7