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Lintel Jan 1 - 7 25 questions
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Monday 24 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x7 × x2

    Answer: x9
  2. 2. Algebra

    Solve: x⁄3 = 8

    Answer: x = 24
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 28cm. Find the angle

    Answer: 50°
  4. 4. Ratio

    Simplify: 4:10:8

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

    A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 3⁄10

Tuesday 25 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 990 + 694

    Answer: 1684
  2. 2. Algebra

    Solve: 3x = 36

    Answer: x = 12
  3. 3. Geometry

    Calculate the distance between (6, 3) and (9, 7)

    Answer: 5
  4. 4. Ratio

    Simplify: 10:8:10

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

    Find the range of: 45, -7, -19, 4, 50

    Answer: 69

Wednesday 26 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 78 + ? = 116

    Answer: 38
  2. 2. Algebra

    Solve: 6x = 84

    Answer: x = 14
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 37cm. Find the angle

    Answer: 55.4°
  4. 4. Ratio

    Simplify: 12:6:12

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

    Find the range of: -12, 29, -30, 3, 40

    Answer: 70

Thursday 27 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 998 + 500

    Answer: 1498
  2. 2. Algebra

    Solve: x⁄5 = 3.2

    Answer: x = 16
  3. 3. Geometry

    Opposite = 18cm, adjacent = 8cm. Calculate the angle

    Answer: 66°
  4. 4. Ratio

    Find 27% of 496

    Answer: 133.92
  5. 5. Statistics

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

    Answer: 1⁄2

Friday 28 October 2022

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 111. What are the numbers?

    Answer: 36, 37, and 38
  2. 2. Algebra

    Solve: x⁄3 = 11.333333333333

    Answer: x = 34
  3. 3. Geometry

    Opposite = 9cm, adjacent = 12cm. Calculate the angle

    Answer: 36.9°
  4. 4. Ratio

    Find 46% of 105

    Answer: 48.3
  5. 5. Statistics

    Calculate the mean of: 15, 35, 38, 47, 27, 10

    Answer: 28.7