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Lintel Jan 1 - 7 25 questions
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Monday 5 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 57 + ? = 155

    Answer: 98
  2. 2. Algebra

    Solve: 2x = 6

    Answer: x = 3
  3. 3. Geometry

    Opposite = 9cm, adjacent = 8cm. Calculate the angle

    Answer: 48.4°
  4. 4. Ratio

    Simplify: 20:24:12

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

    Calculate the mean of: 24, 39, 13, 19, 33, 49, 11, 22

    Answer: 26.3

Tuesday 6 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 93. What are the numbers?

    Answer: 30, 31, and 32
  2. 2. Algebra

    Solve: 2x = 22

    Answer: x = 11
  3. 3. Geometry

    Adjacent = 14cm, hypotenuse = 20cm. Find the angle

    Answer: 45.6°
  4. 4. Ratio

    Find 45% of 180

    Answer: 81
  5. 5. Statistics

    Calculate the mean of: 11, 23, 13, 22, 42, 12

    Answer: 20.5

Wednesday 7 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 895 + 134

    Answer: 895 + 134 = 1029
  2. 2. Algebra

    Solve: x3 = 2.3333333333333

    Answer: x = 7
  3. 3. Geometry

    Calculate the area of a circle with diameter 9cm

    Answer: 63.62cm²
  4. 4. Ratio

    Find 48% of 145

    Answer: 69.6
  5. 5. Statistics

    A spinner has 4 red, 5 blue and 4 green sections. Probability of landing on red?

    Answer: 413

Thursday 8 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 554 + 483

    Answer: 554 + 483 = 1037
  2. 2. Algebra

    For y = 2x³ + 9, find y when x = 4

    Answer: y = 137
  3. 3. Geometry

    Opposite = 11cm, adjacent = 9cm. Calculate the angle

    Answer: 50.7°
  4. 4. Ratio

    Simplify: 8:12:10

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

    Find the range of: 3, 4, -21, 26, 16

    Answer: 47

Friday 9 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 12 + 16 + 12

    Answer: 76
  2. 2. Algebra

    Solve: 7x = 105

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 41cm. Find the angle

    Answer: 55.9°
  4. 4. Ratio

    Find 67% of 347

    Answer: 232.49
  5. 5. Statistics

    A bag has 7 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 713