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Lintel Jan 1 - 7 25 questions
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Monday 18 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 91 + ? = 144

    Answer: 53
  2. 2. Algebra

    Solve: 8x = 120

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 37cm. Find the angle

    Answer: 57.3°
  4. 4. Ratio

    Simplify: 12:16:20

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

    Calculate the mean of: 27, 25, 8, 26, 31, 44, 19

    Answer: 25.7

Tuesday 19 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    The sum of three consecutive numbers is 141. What are the numbers?

    Answer: 46, 47, and 48
  2. 2. Algebra

    Solve: x3 = 11

    Answer: x = 33
  3. 3. Geometry

    Opposite = 9cm, adjacent = 14cm. Calculate the angle

    Answer: 32.7°
  4. 4. Ratio

    Find 35% of 315

    Answer: 110.25
  5. 5. Statistics

    A spinner has 5 red, 5 blue and 6 green sections. Probability of landing on red?

    Answer: 516

Wednesday 20 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    90000

    Answer: 9 × 104
  2. 2. Algebra

    Solve: 3x + 11 = 2x - 7

    Answer: x = 18
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 50cm. Find the angle

    Answer: 53.1°
  4. 4. Ratio

    Find 76% of 340

    Answer: 258.4
  5. 5. Statistics

    Calculate the mean of: 24, 39, 38, 29, 42, 28, 26, 45

    Answer: 33.9

Thursday 21 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 998 + 805

    Answer: 1803
  2. 2. Algebra

    Solve: 2x = 18

    Answer: x = 9
  3. 3. Geometry

    Calculate the area of a circle with diameter 9cm

    Answer: 63.62cm²
  4. 4. Ratio

    Simplify: 9:15:15

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

    A spinner has 5 red, 5 blue and 5 green sections. Probability of landing on red?

    Answer: 13

Friday 22 October 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 154 + 717

    Answer: 154 + 717 = 871
  2. 2. Algebra

    Solve: 2x = 10

    Answer: x = 5
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 45cm. Find the angle

    Answer: 48.2°
  4. 4. Ratio

    Find 62% of 241

    Answer: 149.42
  5. 5. Statistics

    A spinner has 5 red, 6 blue and 6 green sections. Probability of landing on red?

    Answer: 517