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Lintel Jan 1 - 7 25 questions
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Monday 14 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 219 + 212

    Answer: 219 + 212 = 431
  2. 2. Algebra

    What is the next term? 4, 16, 64, 256, ...

    Answer: 1024
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 34cm. Find the angle

    Answer: 47.4°
  4. 4. Ratio

    Simplify: 9:18:9

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

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

    Answer: 613

Tuesday 15 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 16 + 16 + 12

    Answer: 56
  2. 2. Algebra

    Solve: x2 = 13

    Answer: x = 26
  3. 3. Geometry

    Opposite = 8cm, adjacent = 19cm. Calculate the angle

    Answer: 22.8°
  4. 4. Ratio

    Find 48% of 196

    Answer: 94.08
  5. 5. Statistics

    Find the range of: 7, -5, -12, 15, 22

    Answer: 34

Wednesday 16 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 301 + 353

    Answer: 301 + 353 = 654
  2. 2. Algebra

    Factorise fully: 25x² + 35x

    Answer: 5x(5x + 7)
  3. 3. Geometry

    A circle has area 78.5cm². Find its radius (dp)

    Answer: 5cm
  4. 4. Ratio

    Simplify: 9:12:15

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

    Find the range of: 7, -12, 37, 9, 19

    Answer: 49

Thursday 17 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 869

    Answer: 1866
  2. 2. Algebra

    Solve: 8x = 120

    Answer: x = 15
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 11cm and 6cm

    Answer: 33cm²
  4. 4. Ratio

    Find 39% of 214

    Answer: 83.46
  5. 5. Statistics

    A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 715

Friday 18 April 2025

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 150. What are the numbers?

    Answer: 49, 50, and 51
  2. 2. Algebra

    For y = x³ + 5, calculate y when x = 3

    Answer: y = 32
  3. 3. Geometry

    Opposite = 18cm, adjacent = 19cm. Calculate the angle

    Answer: 43.5°
  4. 4. Ratio

    Simplify: 24:20:8

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

    Calculate the mean of: 17, 42, 24, 5, 21, 36, 42

    Answer: 26.7