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Lintel Jan 1 - 7 25 questions
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Monday 7 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 132. What are the numbers?

    Answer: 43, 44, and 45
  2. 2. Algebra

    What is the next term? 7, 14, 28, 56, ...

    Answer: 112
  3. 3. Geometry

    Opposite = 14cm, adjacent = 18cm. Calculate the angle

    Answer: 37.9°
  4. 4. Ratio

    Simplify: 12:12:9

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

    A spinner has 6 red, 2 blue and 6 green sections. Probability of landing on red?

    Answer: 37

Tuesday 8 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 996 + 558

    Answer: 1554
  2. 2. Algebra

    Solve: 6x = 18

    Answer: x = 3
  3. 3. Geometry

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

    Answer: 40.6°
  4. 4. Ratio

    Simplify: 9:6:6

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

    Find the range of: -13, -16, 0, 35, -4

    Answer: 51

Wednesday 9 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 95 + ? = 148

    Answer: 53
  2. 2. Algebra

    Factorise fully: 15x² + 15x

    Answer: 5x(3x + 3)
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 36cm. Find the angle

    Answer: 48.2°
  4. 4. Ratio

    Simplify: 9:18:6

    Answer: 3:6:2
  5. 5. Statistics

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

    Answer: 12

Thursday 10 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 85 + ? = 172

    Answer: 87
  2. 2. Algebra

    Solve: x5 = 7.6

    Answer: x = 38
  3. 3. Geometry

    Opposite = 11cm, adjacent = 13cm. Calculate the angle

    Answer: 40.2°
  4. 4. Ratio

    Simplify: 12:6:8

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

    A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 311

Friday 11 October 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 13 + 35 + 35

    Answer: 2315
  2. 2. Algebra

    For y = x³ + 11, calculate y when x = 2

    Answer: y = 19
  3. 3. Geometry

    A circle has area 615.8cm². Find its radius (dp)

    Answer: 14cm
  4. 4. Ratio

    Simplify: 10:8:10

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

    Find the range of: 20, -17, 17, -8, -30

    Answer: 50