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Lintel Jan 1 - 7 25 questions
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Monday 13 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 995 + 759

    Answer: 1754
  2. 2. Algebra

    Solve: 2x = 22

    Answer: x = 11
  3. 3. Geometry

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

    Answer: 37.4°
  4. 4. Ratio

    Calculate 27.3% of 380

    Answer: 103.74
  5. 5. Statistics

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

    Answer: 815

Tuesday 14 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 995 + 881

    Answer: 1876
  2. 2. Algebra

    Solve: 9x = 63

    Answer: x = 7
  3. 3. Geometry

    Opposite = 13cm, adjacent = 8cm. Calculate the angle

    Answer: 58.4°
  4. 4. Ratio

    Find 63% of 307

    Answer: 193.41
  5. 5. Statistics

    Find the range of: 29, -1, 8, -25, 31

    Answer: 56

Wednesday 15 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 450 + 511

    Answer: 450 + 511 = 961
  2. 2. Algebra

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

    Answer: 21
  3. 3. Geometry

    Find c if a = 15cm and b = 23cm in a right triangle

    Answer: 27.5cm
  4. 4. Ratio

    Simplify: 18:18:12

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

    A bag has 8 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 813

Thursday 16 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the missing number: 8.25 + □ = 13.87

    Answer: □ = 5.62
  2. 2. Algebra

    Simplify: 8x - 5x + 7y - 5y

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

    Opposite = 19cm, adjacent = 14cm. Calculate the angle

    Answer: 53.6°
  4. 4. Ratio

    Find 40% of 161

    Answer: 64.4
  5. 5. Statistics

    A bag has 3 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 38

Friday 17 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 854 + 986

    Answer: 854 + 986 = 1840
  2. 2. Algebra

    For y = x³ + 4, calculate y when x = 2

    Answer: y = 12
  3. 3. Geometry

    Find the perimeter: hypotenuse = 20cm, one side = 14cm

    Answer: 48.3cm
  4. 4. Ratio

    Simplify: 12:16:8

    Answer: 3:4:2
  5. 5. Statistics

    Find the range of: 19, 20, -13, 45, 14

    Answer: 58