New Curriculum First Term Mathematics examination for JSS 1

Class: JSS 1
Term: First Term
Subject: General Mathematics
Time: 2 hours
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions. Each question carries 1 mark.

1. In the number 3,204,500, the highest place-value group used is ________. (a) thousands    (b) billions    (c) trillions    (d) millions
2. Find the LCM of 4 and 6. (a) 24    (b) 6    (c) 12    (d) 2
3. Find the HCF of 18 and 24. (a) 42    (b) 6    (c) 72    (d) 12
4. Complete the counting-in-twos sequence: 12, 14, 16, ________. (a) 17    (b) 18    (c) 19    (d) 20
5. Express 5₁₀ in base two. (a) 101₂    (b) 110₂    (c) 111₂    (d) 11₂
6. Which fraction is equivalent to 2/4? (a) 1/3    (b) 1    (c) 0    (d) 1/2
7. Convert 1/4 to a percentage. (a) 35%    (b) 20%    (c) 25%    (d) 45%
8. Write the fraction 2/5 as a decimal. (a) 0.6    (b) 0.333333    (c) 0.4    (d) 2.5
9. In the number 410,000,000, the highest place-value group used is ________. (a) thousands    (b) millions    (c) billions    (d) trillions
10. Find the LCM of 6 and 9. (a) 18    (b) 54    (c) 9    (d) 3
11. Find the HCF of 36 and 48. (a) 84    (b) 144    (c) 24    (d) 12
12. Complete the counting-in-twos sequence: 22, 24, 26, ________. (a) 27    (b) 29    (c) 30    (d) 28
13. Express 9₁₀ in base two. (a) 1010₂    (b) 1011₂    (c) 1001₂    (d) 111₂
14. Which fraction is equivalent to 4/6? (a) 1/2    (b) 2/3    (c) 1    (d) 4/3
15. Convert 1/2 to a percentage. (a) 50%    (b) 60%    (c) 45%    (d) 70%
16. Write the fraction 3/10 as a decimal. (a) 0.3    (b) 0.4    (c) 0.272727    (d) 3.33333
17. In the number 7,000,000,000,000, the highest place-value group used is ________. (a) thousands    (b) millions    (c) billions    (d) trillions
18. Find the LCM of 8 and 12. (a) 96    (b) 12    (c) 24    (d) 4
19. Find the HCF of 28 and 42. (a) 70    (b) 14    (c) 84    (d) 28
20. Complete the counting-in-twos sequence: 48, 50, 52, ________. (a) 53    (b) 54    (c) 55    (d) 56
21. Express 10₁₀ in base two. (a) 1010₂    (b) 1011₂    (c) 1100₂    (d) 1000₂
22. Which fraction is equivalent to 6/10? (a) 1/2    (b) 4/5    (c) 6/5    (d) 3/5
23. Convert 1/5 to a percentage. (a) 30%    (b) 15%    (c) 20%    (d) 40%
24. Write the fraction 7/20 as a decimal. (a) 0.4    (b) 0.333333    (c) 0.35    (d) 2.85714
25. In the number 64,000,000,000, the highest place-value group used is ________. (a) thousands    (b) billions    (c) millions    (d) trillions
26. Find the LCM of 5 and 15. (a) 15    (b) 75    (c) 5    (d) 30
27. Find the HCF of 30 and 45. (a) 75    (b) 90    (c) 30    (d) 15
28. Complete the counting-in-twos sequence: 60, 62, 64, ________. (a) 65    (b) 67    (c) 68    (d) 66
29. Express 12₁₀ in base two. (a) 1101₂    (b) 1110₂    (c) 1100₂    (d) 1010₂
30. Which fraction is equivalent to 8/12? (a) 4/7    (b) 2/3    (c) 5/6    (d) 4/3
31. Convert 2/5 to a percentage. (a) 40%    (b) 50%    (c) 35%    (d) 60%
32. Write the fraction 3/5 as a decimal. (a) 0.6    (b) 0.8    (c) 0.5    (d) 1.66667
33. In the number 805,020,000, the highest place-value group used is ________. (a) thousands    (b) billions    (c) trillions    (d) millions
34. Find the LCM of 7 and 14. (a) 98    (b) 7    (c) 14    (d) 28
35. Find the HCF of 54 and 72. (a) 126    (b) 18    (c) 216    (d) 36
36. Express 15₁₀ in base two. (a) 10000₂    (b) 1111₂    (c) 10001₂    (d) 1101₂
37. Write the fraction 9/10 as a decimal. (a) 0.9    (b) 1    (c) 0.818182    (d) 1.11111
38. In the number 900,000,000,000, the highest place-value group used is ________. (a) thousands    (b) millions    (c) trillions    (d) billions
39. Express 21₁₀ in base two. (a) 10110₂    (b) 10111₂    (c) 10101₂    (d) 10011₂
40. Express 25₁₀ in base two. (a) 11010₂    (b) 11011₂    (c) 11001₂    (d) 10111₂

SECTION B: THEORY (30 Marks)
Instruction: Answer Question 1 and any other TWO questions. Each question carries 10 marks.

1. Numbers and place values
(a) Write 5,040,000,000 in words. (3 marks)
(b) State the value of the digit 4 in 5,040,000,000. (2 marks)
(c) Write eighteen trillion in figures using digit groups. (5 marks)

2. Factors and multiples
(a) List all the factors of 24. (4 marks)
(b) Find the HCF of 24 and 36. (3 marks)
(c) Find the LCM of 6 and 8. (3 marks)

3. Binary and counting
(a) Convert 13₁₀ to binary. Show your working. (5 marks)
(b) Continue: 18, 20, 22, __, __. (2 marks)
(c) Convert 1011₂ to base ten. (3 marks)

4. Fractions and percentages
(a) Simplify 6/8 to its lowest terms. (3 marks)
(b) Change 3/5 to a percentage. (3 marks)
(c) Arrange 1/4, 2/3 and 1/2 in ascending order. (4 marks)

Objective Marking Scheme
Question 1 – ✅ (d) millions
Question 2 – ✅ (c) 12
Question 3 – ✅ (b) 6
Question 4 – ✅ (b) 18
Question 5 – ✅ (a) 101₂
Question 6 – ✅ (d) 1/2
Question 7 – ✅ (c) 25%
Question 8 – ✅ (c) 0.4
Question 9 – ✅ (b) millions
Question 10 – ✅ (a) 18
Question 11 – ✅ (d) 12
Question 12 – ✅ (d) 28
Question 13 – ✅ (c) 1001₂
Question 14 – ✅ (b) 2/3
Question 15 – ✅ (a) 50%
Question 16 – ✅ (a) 0.3
Question 17 – ✅ (d) trillions
Question 18 – ✅ (c) 24
Question 19 – ✅ (b) 14
Question 20 – ✅ (b) 54
Question 21 – ✅ (a) 1010₂
Question 22 – ✅ (d) 3/5
Question 23 – ✅ (c) 20%
Question 24 – ✅ (c) 0.35
Question 25 – ✅ (b) billions
Question 26 – ✅ (a) 15
Question 27 – ✅ (d) 15
Question 28 – ✅ (d) 66
Question 29 – ✅ (c) 1100₂
Question 30 – ✅ (b) 2/3
Question 31 – ✅ (a) 40%
Question 32 – ✅ (a) 0.6
Question 33 – ✅ (d) millions
Question 34 – ✅ (c) 14
Question 35 – ✅ (b) 18
Question 36 – ✅ (b) 1111₂
Question 37 – ✅ (a) 0.9
Question 38 – ✅ (d) billions
Question 39 – ✅ (c) 10101₂
Question 40 – ✅ (c) 11001₂

Theory Marking Scheme
Question 1: (a) Five billion and forty million. (3); (b) 40,000,000. (2); (c) 18,000,000,000,000. (5).
Question 2: (a) 1, 2, 3, 4, 6, 8, 12, 24. (4); (b) 12. (3); (c) 24. (3).
Question 3: (a) 1101₂. (5); (b) 24, 26. (2); (c) 11. (3).
Question 4: (a) 3/4. (3); (b) 60%. (3); (c) 1/4, 1/2, 2/3. (4).
Award method marks for correct steps; accept equivalent simplified answers.