Examination on General Mathematics
Class: Primary 6
Term: Second Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ is the rule that dictates the order of operations in mathematics. (a) Indices (b) BODMAS (c) Ratio (d) Perimeter
2. Which of these is not a unit of weight? (a) Gramme (b) Kilogramme (c) Litre (d) Tonne
3. In a right-angled triangle, the longest side is called the ________. (a) adjacent (b) opposite (c) hypotenuse (d) base
4. The main reason for expressing numbers in index form is to ________. (a) make them larger (b) simplify large numbers (c) make them smaller (d) confuse students
5. An example of an open sentence is ________. (a) 2 + 3 = 5 (b) x + 7 = 10 (c) 4 × 2 (d) 9 – 3
6. Which operation is performed first according to the BODMAS rule after Brackets and Orders? (a) Addition (b) Division (c) Subtraction (d) Multiplication
7. All of these are ways to calculate money in economics except ________. (a) Taxes (b) Rates (c) Dividends (d) Perimeter
8. The correct step to convert 5000 grammes to kilograms is to ________. (a) multiply by 1000 (b) divide by 1000 (c) add 1000 (d) subtract 1000
9. Which of these is NOT a component of Pythagoras rule? (a) a² (b) b² (c) c³ (d) c²
10. ________ is the amount of money paid by citizens to the government. (a) Dividend (b) Share (c) Tax (d) Rent
11. Which of the following represents 4 x 4 x 4 x 4 x 4 in index form? (a) 4⁵ (b) 5⁴ (c) 4 x 5 (d) 4 + 5
12. If 20% of a number is 10, the number is ________. (a) 2 (b) 50 (c) 200 (d) 100
13. The main reason for using a timetable is to ________. (a) waste time (b) organize activities (c) forget appointments (d) create confusion
14. To convert 15,000 m² to hectares, you should divide by ________. (a) 100 (b) 1000 (c) 10,000 (d) 100,000
15. Which of these is not a common unit for measuring time? (a) Minute (b) Second (c) Hour (d) Kilogramme
16. All of these are types of ratios except ________. (a) Boys to girls (b) Parts to whole (c) Unit ratio (d) Square ratio
17. The correct step to find the perimeter of a rectangle is to ________. (a) multiply length by width (b) add all sides (c) divide length by width (d) subtract width from length
18. Which of these does NOT describe an open sentence? (a) Contains an unknown variable (b) Has an equality or inequality sign (c) Can be solved to find the variable (d) Always has a definite answer without calculation
19. ________ is the profit or loss expressed as a percentage of the cost price. (a) Ratio (b) Percentage (c) Profit/Loss percentage (d) Dividend
20. Which of the following formulas is used to calculate the area of a trapezium? (a) L x W (b) 1/2(a+b)h (c) πr² (d) a² + b²

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) State the full meaning of BODMAS. (2 marks)
(b) Evaluate: 15 + (10 – 4) ÷ 2 x 3 (3 marks)
(c) Write an open sentence for: “When a number is multiplied by 5 and 8 is added to the result, the answer is 28.” (3 marks)
(d) Solve for ‘y’ in the open sentence: 3y – 7 = 14 (2 marks)

2. (a) In a class of 40 pupils, 25 are boys. What is the ratio of girls to boys? (2 marks)
(b) A trader bought an item for N800 and sold it for N1000. Calculate the profit percentage. (3 marks)
(c) Explain what “dividend” means in terms of shares. (3 marks)
(d) If N10,000 is 5% of a tax, what is the total tax amount? (2 marks)

3. (a) Express 125 in prime factor index form. (2 marks)
(b) Simplify: 2³ × 2⁴ (3 marks)
(c) A right-angled triangle has two shorter sides measuring 6cm and 8cm. Calculate the length of its hypotenuse. (3 marks)
(d) Identify the hypotenuse in a right-angled triangle. (2 marks)

4. (a) Define perimeter of a shape. (2 marks)
(b) Calculate the area of a trapezium with parallel sides 8cm and 12cm, and height 5cm. (3 marks)
(c) Convert 3.5 kilograms to grammes. (3 marks)
(d) If a journey starts at 9:30 AM and takes 2 hours 45 minutes, what time does it end? (2 marks)

Objective Marking Scheme
Question 1 – ✅ (b) BODMAS
Question 2 – ✅ (c) Litre
Question 3 – ✅ (c) hypotenuse
Question 4 – ✅ (b) simplify large numbers
Question 5 – ✅ (b) x + 7 = 10
Question 6 – ✅ (b) Division
Question 7 – ✅ (d) Perimeter
Question 8 – ✅ (b) divide by 1000
Question 9 – ✅ (c) c³
Question 10 – ✅ (c) Tax
Question 11 – ✅ (a) 4⁵
Question 12 – ✅ (b) 50
Question 13 – ✅ (b) organize activities
Question 14 – ✅ (c) 10,000
Question 15 – ✅ (d) Kilogramme
Question 16 – ✅ (d) Square ratio
Question 17 – ✅ (b) add all sides
Question 18 – ✅ (d) Always has a definite answer without calculation
Question 19 – ✅ (c) Profit/Loss percentage
Question 20 – ✅ (b) 1/2(a+b)h