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Capstone Feb 9 - 15 25 questions
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Monday 9 February 2026

Keystones #40 · Five questions · Open this day only

  1. 1. Number

    Multiply: 9.8 × 104 × 9.9 × 103

    Answer: 9.7 × 108
  2. 2. Algebra

    Solve: 6x + 7 ≤ 3x - 10

    Answer: x ≤ 5.7
  3. 3. Geometry

    A right triangle has hypotenuse 5cm and one side 3cm. Find its area

    Answer: 6cm²
  4. 4. Ratio

    In ratio 2:1, the difference between shares is 96. What is the total?

    Answer: 288
  5. 5. Statistics

    Find the mode of: 62, 71, 11, 45, 32

    Answer: No mode

Tuesday 10 February 2026

Keystones #41 · Five questions · Open this day only

  1. 1. Number

    Multiply: 9.7 × 105 × 4.8 × 104

    Answer: 4.66 × 1010
  2. 2. Algebra

    Solve: 7x + 12 ≤ 2x - 6

    Answer: x ≤ 3.6
  3. 3. Geometry

    A right triangle has hypotenuse 17cm and one side 8cm. Find its area

    Answer: 60cm²
  4. 4. Ratio

    In ratio 7:4, the difference between shares is 102. What is the total?

    Answer: 374
  5. 5. Statistics

    Find the mode of: 14, 46, 62, 35, 73

    Answer: No mode

Wednesday 11 February 2026

Keystones #42 · Five questions · Open this day only

  1. 1. Number

    Multiply: 6.1 × 106 × 2.8 × 105

    Answer: 1.71 × 1012
  2. 2. Algebra

    Solve: 6x + 12 ≤ 3x - 3

    Answer: x ≤ 5
  3. 3. Geometry

    A right triangle has hypotenuse 13cm and one side 5cm. Find its area

    Answer: 30cm²
  4. 4. Ratio

    In ratio 5:3, the difference between shares is 58. What is the total?

    Answer: 232
  5. 5. Statistics

    Find the mode of: 72, 19, 58, 49, 33

    Answer: No mode

Thursday 12 February 2026

Keystones #43 · Five questions · Open this day only

  1. 1. Number

    Multiply: 8.4 × 106 × 4.9 × 103

    Answer: 4.12 × 1010
  2. 2. Algebra

    Solve: 3x + 6 ≤ x - 4

    Answer: x ≤ 5
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 10cm and 15cm

    Answer: 75cm²
  4. 4. Ratio

    In ratio 9:2, the difference between shares is 259. What is the total?

    Answer: 407
  5. 5. Statistics

    Find the mode of: 13, 31, 59, 79, 49

    Answer: No mode

Friday 13 February 2026

Keystones #44 · Five questions · Open this day only

  1. 1. Number

    Multiply: 5.8 × 105 × 6.8 × 105

    Answer: 3.94 × 1011
  2. 2. Algebra

    Solve: 6x + 4 ≤ 5x - 9

    Answer: x ≤ 13
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 13cm and 12cm

    Answer: 78cm²
  4. 4. Ratio

    In ratio 3:1, the difference between shares is 84. What is the total?

    Answer: 168
  5. 5. Statistics

    Find the mode of: 75, 25, 14, 65, 50

    Answer: No mode