Change pack
Cornerstone Jan 1 - 7 25 questions
PDF (questions) PDF (answers)

Monday 5 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: x7 × x6

    Answer: x13
  2. 2. Algebra

    What is the next term? 2, 6, 18, 54, ...

    Answer: 162
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 21.2cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Simplify: 15:18:18

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

    Find the range of: 16, 26, 29, 6, 12

    Answer: 23

Tuesday 6 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 612 + 212

    Answer: 23
  2. 2. Algebra

    Solve: 8x - 12 = 2x + 6

    Answer: x = 3
  3. 3. Geometry

    Opposite = 11cm, adjacent = 14cm. Calculate the angle

    Answer: 38.2°
  4. 4. Ratio

    Find 30% of 488

    Answer: 146.4
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 12

Wednesday 7 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Add: 35 + 16

    Answer: 2330
  2. 2. Algebra

    Simplify: 7x + 9x

    Answer: 16x
  3. 3. Geometry

    Opposite = 7cm, hypotenuse = 14cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Find 45% of 469

    Answer: 211.05
  5. 5. Statistics

    Calculate the range of: 61, 95, 44, 61, 84, 37

    Answer: 58

Thursday 8 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 815 + 831

    Answer: 815 + 831 = 1646
  2. 2. Algebra

    Factorise: 6x + 14

    Answer: 2(3x + 7)
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Simplify: 9:15:12

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

    Calculate the mean of: 45, 39, 50, 47, 27, 27, 40, 11

    Answer: 35.8

Friday 9 February 2024

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 30 + 37

    Answer: 30 + 37 = 67
  2. 2. Algebra

    Solve: 4x = 36

    Answer: x = 9
  3. 3. Geometry

    Calculate the area of a circle with diameter 24cm

    Answer: 452.39cm²
  4. 4. Ratio

    Find 31% of 225

    Answer: 69.75
  5. 5. Statistics

    Find the range of: 29, 16, 29, 18, 18

    Answer: 13