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Lintel Jan 1 - 7 25 questions
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Monday 30 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    What is the missing number: 43 + ? = 154

    Answer: 111
  2. 2. Algebra

    Solve: x4 = 9

    Answer: x = 36
  3. 3. Geometry

    Opposite = 17cm, adjacent = 11cm. Calculate the angle

    Answer: 57.1°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 6 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 38

Tuesday 31 August 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 24 + 45 + 13

    Answer: 4930
  2. 2. Algebra

    Solve: 4x = 16

    Answer: x = 4
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 32cm. Find the angle

    Answer: 41.4°
  4. 4. Ratio

    Calculate 12.4% of 670

    Answer: 83.08
  5. 5. Statistics

    Calculate the mean of: 18, 14, 34, 13, 29, 26, 5

    Answer: 19.9

Wednesday 1 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Calculate: 997 + 755

    Answer: 1752
  2. 2. Algebra

    Solve: 2x = 30

    Answer: x = 15
  3. 3. Geometry

    Adjacent = 29cm, hypotenuse = 37cm. Find the angle

    Answer: 38.4°
  4. 4. Ratio

    Calculate 21.9% of 519

    Answer: 113.66
  5. 5. Statistics

    Find the range of: 25, 19, 27, -26, 21

    Answer: 53

Thursday 2 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the total of 115, 152, and 124

    Answer: 391
  2. 2. Algebra

    Factorise: 2x² + 6x

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

    Opposite = 11cm, adjacent = 10cm. Calculate the angle

    Answer: 47.7°
  4. 4. Ratio

    Calculate 26.1% of 474

    Answer: 123.71
  5. 5. Statistics

    Find the range of: 23, -30, 14, -30, -21

    Answer: 53

Friday 3 September 2021

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Find the missing number: 5.13 + □ = 14.35

    Answer: □ = 9.22
  2. 2. Algebra

    Solve: x5 = 3.4

    Answer: x = 17
  3. 3. Geometry

    Adjacent = 27cm, hypotenuse = 34cm. Find the angle

    Answer: 37.4°
  4. 4. Ratio

    Calculate 17.8% of 332

    Answer: 59.1
  5. 5. Statistics

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

    Answer: 715