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Lintel Jan 1 - 7 25 questions
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Monday 6 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 38 + ? = 192

    Answer: 154
  2. 2. Algebra

    Solve: 4x = 28

    Answer: x = 7
  3. 3. Geometry

    Calculate the area of a circle with diameter 24cm

    Answer: 452.39cm²
  4. 4. Ratio

    Calculate 18% of 897

    Answer: 161.46
  5. 5. Statistics

    Calculate the mean of: 7, 20, 6, 5, 20, 40, 13, 48

    Answer: 19.9

Tuesday 7 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The temperature is -12°C. It rises by 13°C. What is the new temperature?

    Answer: 1°C
  2. 2. Algebra

    Factorise fully: 18x² + 9x

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

    Adjacent = 21cm, hypotenuse = 28cm. Find the angle

    Answer: 41.4°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 15

Wednesday 8 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 753

    Answer: 1749
  2. 2. Algebra

    Expand: 2(5x - 3)

    Answer: 10x - 6
  3. 3. Geometry

    Adjacent = 15cm, hypotenuse = 24cm. Find the angle

    Answer: 51.3°
  4. 4. Ratio

    Calculate 28.2% of 206

    Answer: 58.09
  5. 5. Statistics

    Find the range of: 43, 5, 6, -26, 32

    Answer: 69

Thursday 9 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 30 + ? = 112

    Answer: 82
  2. 2. Algebra

    Solve: 8x = 48

    Answer: x = 6
  3. 3. Geometry

    Opposite = 8cm, adjacent = 20cm. Calculate the angle

    Answer: 21.8°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 13

Friday 10 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 118, 119, and 50

    Answer: 287
  2. 2. Algebra

    Solve: 2x = 6

    Answer: x = 3
  3. 3. Geometry

    Find c if a = 18cm and b = 21cm in a right triangle

    Answer: 27.7cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 311