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Standard 5 · Belize
Standard 5 · Mathematics · Cycle 1
🔢 Classwork Check — Prime, Square & Cube Sort
MA 1.37–1.39 · 44 marks · Answer all 12 questions
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📘 Section A — Odd, Even, Prime & Composite
14 marks
MA 1.37 · A prime number has exactly two factors (1 and itself). A composite number has more than two factors. The number 1 is neither.
1.Which of these numbers is prime?3 marks
2.Which statement about the number 1 is TRUE?3 marks
3.Sort each number. Choose whether it is Prime, Composite, or Neither.8 marks
💡 Word bank — the three groups
Prime = exactly 2 factors
Composite = more than 2 factors
Neither = only the number 1
1. The number 2
2. The number 51
3. The number 1
4. The number 9
📗 Section B — Square Numbers
17 marks
MA 1.38 · n² = n × n. A square number is the area of a square whose side is that number.
4.What is 13²?3 marks
5.Which of these is a square number?3 marks
6.A square school courtyard has sides of 15 metres. What is its area, in square metres?4 marks
Remember
Area of a square = side × side7.A square garden has an area of 256 square metres. How long is one side, in metres?4 marks
Think
Which number, multiplied by itself, gives 256?8.What is 25²?3 marks
📙 Section C — Cube Numbers
13 marks
MA 1.39 · n³ = n × n × n. A cube number is the volume of a cube whose side is that number.
9.What is 2³?3 marks
10.Which of these is a cube number?3 marks
11.A cube-shaped box has sides of 5 units. How many unit cubes fill it completely?4 marks
Remember
Volume of a cube = side × side × side12.Which statement is TRUE?3 marks
Answer all 12 questions to submit