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Lintel Jan 1 - 7 25 questions
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Monday 20 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 96 + ? = 194

    Answer: 98
  2. 2. Algebra

    Solve: x7 = 5.7142857142857

    Answer: x = 40
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 46cm. Find the angle

    Answer: 49.3°
  4. 4. Ratio

    Simplify: 20:16:20

    Answer: 5:4:5
  5. 5. Statistics

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

    Answer: 14

Tuesday 21 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 751

    Answer: 1747
  2. 2. Algebra

    Solve: 7x = 98

    Answer: x = 14
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 11cm and 9cm

    Answer: 49.5cm²
  4. 4. Ratio

    Simplify: 15:18:12

    Answer: 5:6:4
  5. 5. Statistics

    Calculate the mean of: 16, 31, 39, 14, 12, 38, 44

    Answer: 27.7

Wednesday 22 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 218, 153, and 136

    Answer: 507
  2. 2. Algebra

    Solve: 8x = 56

    Answer: x = 7
  3. 3. Geometry

    Find c if a = 15cm and b = 25cm in a right triangle

    Answer: 29.2cm
  4. 4. Ratio

    Find 38% of 207

    Answer: 78.66
  5. 5. Statistics

    Calculate the mean of: 36, 17, 39, 47, 6, 8, 14

    Answer: 23.9

Thursday 23 January 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

    Solve: x5 = 5.6

    Answer: x = 28
  3. 3. Geometry

    Opposite = 12cm, adjacent = 14cm. Calculate the angle

    Answer: 40.6°
  4. 4. Ratio

    Simplify: 10:8:8

    Answer: 5:4:4
  5. 5. Statistics

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

    Answer: 14

Friday 24 January 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 13 + 23 + 13

    Answer: 43
  2. 2. Algebra

    Solve: x5 = 6

    Answer: x = 30
  3. 3. Geometry

    Opposite = 20cm, adjacent = 11cm. Calculate the angle

    Answer: 61.2°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    Calculate the mean of: 33, 44, 27, 42, 22, 48, 26, 25

    Answer: 33.4