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Lintel Jan 1 - 7 25 questions
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Monday 20 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 90. What are the numbers?

    Answer: 29, 30, and 31
  2. 2. Algebra

    Solve: x⁄4 = 4.25

    Answer: x = 17
  3. 3. Geometry

    Opposite = 15cm, adjacent = 10cm. Calculate the angle

    Answer: 56.3°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: -24, -21, 38, -2, 43

    Answer: 67

Tuesday 21 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 2⁄3 + 5⁄8

    Answer: 31⁄24
  2. 2. Algebra

    Factorise: 8x² + 4x

    Answer: 4x(2x + 1)
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 38cm. Find the angle

    Answer: 50.8°
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 4 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 4⁄7

Wednesday 22 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 126. What are the numbers?

    Answer: 41, 42, and 43
  2. 2. Algebra

    Solve: 9x = 126

    Answer: x = 14
  3. 3. Geometry

    Calculate the distance between (6, 4) and (9, 8)

    Answer: 5
  4. 4. Ratio

    Calculate 29.8% of 736

    Answer: 219.33
  5. 5. Statistics

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

    Answer: 3⁄10

Thursday 23 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 132, 177, and 64

    Answer: 373
  2. 2. Algebra

    Solve: x⁄4 = 4.75

    Answer: x = 19
  3. 3. Geometry

    Find c if a = 15cm and b = 14cm in a right triangle

    Answer: 20.5cm
  4. 4. Ratio

    Calculate 35.1% of 506

    Answer: 177.61
  5. 5. Statistics

    Find the range of: -26, 29, -11, 48, -4

    Answer: 74

Friday 24 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 3⁄8 + 1⁄6

    Answer: 13⁄24
  2. 2. Algebra

    Solve: x⁄3 = 5

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 27cm, hypotenuse = 33cm. Find the angle

    Answer: 35.1°
  4. 4. Ratio

    Simplify: 8:12:6

    Answer: 4:6:3
  5. 5. Statistics

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

    Answer: 8⁄13