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

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

1. ________ is the study of human population. (a) Geography (b) Demography (c) Biology (d) Geology
2. The place value of 7 in 4,725,301,986 is ________. (a) Ten millions (b) Hundred millions (c) Billions (d) Ten billions
3. Which of the following is an improper fraction? (a) 1/2 (b) 3/4 (c) 7/5 (d) 2/3
4. The value of the digit 5 in 12.357 is ________. (a) 5 tenths (b) 5 hundredths (c) 5 thousands (d) 5 units
5. All of these are types of fractions except ________. (a) Proper fraction (b) Improper fraction (c) Mixed fraction (d) Decimal fraction
6. The main reason for reducing a ratio to its simplest form is to ________. (a) Make it larger (b) Make it easier to understand (c) Change its value (d) Add more numbers
7. Which of these numbers is equivalent to 0.75? (a) 1/4 (b) 1/2 (c) 3/4 (d) 4/3
8. The LCM of 4 and 6 is ________. (a) 2 (b) 12 (c) 24 (d) 36
9. When we compare two quantities, we are dealing with ________. (a) Proportion (b) Percentage (c) Ratio (d) Fraction
10. The correct step in finding 20% of 50 is to ________. (a) Multiply 20 by 50 (b) Divide 20 by 50 (c) Multiply (20/100) by 50 (d) Add 20 and 50
11. Which of the following numbers is a perfect square? (a) 10 (b) 16 (c) 20 (d) 24
12. The number 56,000,000,000 in words is ________. (a) Fifty-six million (b) Fifty-six billion (c) Fifty-six thousand (d) Five hundred sixty million
13. Which is NOT a common multiple of 3 and 5? (a) 15 (b) 30 (c) 45 (d) 20
14. The decimal equivalent of 3/10 is ________. (a) 3.0 (b) 0.3 (c) 0.03 (d) 30.0
15. Failure to order fractions correctly can lead to ________. (a) Bigger numbers (b) Incorrect comparisons (c) Simpler fractions (d) More decimals
16. If a class has 30 boys and 20 girls, the percentage of boys is ________. (a) 40% (b) 50% (c) 60% (d) 70%
17. The HCF of 12 and 18 is ________. (a) 2 (b) 3 (c) 6 (d) 9
18. An example of a mixed fraction is ________. (a) 5/2 (b) 2 1/2 (c) 1/2 (d) 2/5
19. What is 0.25 multiplied by 0.2? (a) 0.5 (b) 0.05 (c) 0.005 (d) 0.0005
20. Adding 3/4 and 1/4 gives ________. (a) 1 (b) 1/2 (c) 2/4 (d) 4/8

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

1. (a) Write the number 7,005,020,100 in words. (2 marks)
(b) What is the place value of the digit 5 in 125,987,000? (3 marks)
(c) Arrange the following decimal numbers in ascending order: 0.5, 0.05, 0.55, 0.005. (3 marks)
(d) Express 0.125 as a fraction in its simplest form. (2 marks)

2. (a) Define demography. (2 marks)
(b) If a town has a population of 85,000 people and another town has 120,500 people, what is the difference in their populations? (3 marks)
(c) Express 45 as a percentage of 150. (3 marks)
(d) What is the ratio of 25 minutes to 1 hour in its simplest form? (2 marks)

3. (a) List two types of fractions. (2 marks)
(b) Find the sum of 3/5 and 1/4. (3 marks)
(c) A shop increased the price of a book from N400 to N500. Calculate the percentage increase. (3 marks)
(d) Multiply 2.5 by 1.5. (2 marks)

4. (a) Find the HCF of 24 and 36. (2 marks)
(b) A car travels 180 km in 3 hours. How far will it travel in 5 hours at the same speed? (3 marks)
(c) Divide 72.8 by 1.6. (3 marks)
(d) What is the square root of 81? (2 marks)

5. (a) Write 4.07 in expanded form. (2 marks)
(b) A class has 40 students. If 60% are girls, how many boys are in the class? (3 marks)
(c) Order the fractions 2/3, 1/2, 3/4 in descending order. (3 marks)
(d) What is the LCM of 9 and 12? (2 marks)

Objective Marking Scheme

Question 1 – ✅ (b) Demography
Question 2 – ✅ (b) Hundred millions
Question 3 – ✅ (c) 7/5
Question 4 – ✅ (b) 5 hundredths
Question 5 – ✅ (d) Decimal fraction
Question 6 – ✅ (b) Make it easier to understand
Question 7 – ✅ (c) 3/4
Question 8 – ✅ (b) 12
Question 9 – ✅ (c) Ratio
Question 10 – ✅ (c) Multiply (20/100) by 50
Question 11 – ✅ (b) 16
Question 12 – ✅ (b) Fifty-six billion
Question 13 – ✅ (d) 20
Question 14 – ✅ (b) 0.3
Question 15 – ✅ (b) Incorrect comparisons
Question 16 – ✅ (c) 60%
Question 17 – ✅ (c) 6
Question 18 – ✅ (b) 2 1/2
Question 19 – ✅ (b) 0.05
Question 20 – ✅ (a) 1