MATHEMATICS JSS 1 SECOND TERM EXAMINATION QUESTIONS

SECTION A (OBJECTIVE QUESTIONS)

1. The value of 8 in 18,214 is:
   (a) 8 units
   (b) 8 tens
   (c) 8 hundreds
   (d) 8 thousands
   (e) 8 ten thousands

2. The Roman numeral CXCIV represents the number:
   (a) 194
   (b) 186
   (c) 214
   (d) 215
   (e) 216

3. What is the number represented by ?
   (a) 32
   (b) 40
   (c) 28
   (d) 39

4. Round 3.9998 to 2 significant figures:
   (a) 3.9
   (b) 3.0
   (c) 4.0
   (d) 4.99

5. Round 37.0567 to 2 decimal places:
   (a) 37
   (b) 37.06
   (c) 37.05
   (d) 37.1

6. Round 26 to the nearest ten:
   (a) 5
   (b) 20
   (c) 30
   (d) 40

7. Round 7.586 to the nearest whole number:
   (a) 8
   (b) 7
   (c) 6
   (d) 7.6

8. Find the approximate value of 0.41 × 0.92:
   (a) 0.6
   (b) 0.36
   (c) 0.3
   (d) 0.04

9. Compute x = 0.876 – 0.326 using rough calculation:
   (a) 0.18
   (b) 0.21
   (c) 0.3
   (d) 0.55

10. A sum of ₦236,000 is divided equally among 54 club members. Approximately, how much does each member get?
    (a) ₦4,000
    (b) ₦2,000
    (c) ₦20,000
    (d) ₦40,000

11. Binary numbers are numbers in:
    (a) Base two
    (b) Base ten
    (c) Base four
    (d) Base eight

12. Base two numbers are made up of which digits?
    (a) 0 and 1
    (b) 0 and 2
    (c) 1 and 3
    (d) 0, 1, and 2

13. Simplify in base two: (111 + 111)
    (a) 1101
    (b) 1110
    (c) 1001
    (d) 1000

14. Convert 321₄ to base eight:
    (a) 71
    (b) 81
    (c) 62
    (d) 75

15. Convert 35471₈ to base ten:
    (a) 15097
    (b) 16081
    (c) 17097
    (d) 16097

16. Find the missing number in the expansion below:
    4983₁₀ = 4 × 10³ + 9 × ___ + 8 × 10¹ + 3 × 1
    (a) 10⁴
    (b) 10³
    (c) 10²
    (d) 10¹

17. By how much is 29 greater than 17?
    (a) 12
    (b) 18
    (c) 19
    (d) 17

18. There are 816 boys and 658 girls in a school. How many students are there altogether?
    (a) 1,356
    (b) 1,474
    (c) 1,744
    (d) 1,074

19. Find the difference between 8,074 and 5,729:
    (a) 2,345
    (b) 5,432
    (c) 5,745
    (d) 4,365

20. What is the additive inverse of -8?
    (a) +4
    (b) +2
    (c) +8
    (d) +7

21. Two students entered an empty classroom. Later, three students came out. If one more student enters the classroom again, how many students will be left inside?
    (a) 0
    (b) 1
    (c) 2
    (d) 3

22. Find the value of x in the equation: x – 14 = 2
    (a) 20
    (b) 16
    (c) 9
    (d) 24

23. Find the value of a if 3 × a = 27
    (a) 20
    (b) 16
    (c) 9
    (d) 24

24. Simplify: 7x – 6 – (2 – x)
    (a) 8x – 8
    (b) 7x – 8
    (c) 7x + 12
    (d) 8x – 4

SECTION B (THEORY QUESTIONS)

1. Fractions in Budgeting

Mr. Hope spends ¹/₃ of his earnings on food and ¼ on clothes. He then saves the rest.
(a) What fraction of his earnings does he spend altogether?
(b) What fraction of his earnings does he save?

2. Rounding Numbers

The number of road accidents on Lagos–Ibadan Expressway in a decade was 1,294,594.
(a) Round this number to the nearest 100.
(b) Round this number to the nearest 1,000.

3. Approximation and Rounding

Express each number correct to 1 decimal place (1 d.p.) and 1 significant figure (1 s.f.)
(a) 23.0036
(b) 6.7887

4. Use Approximation to Calculate

(a) 35.8 – 8.99
(b) 7.784 × 97.5

5. Binary Arithmetic

Simplify the following in base two:

(a)

(b)

6. Conversion to Binary

Convert the following numbers to binary:
(a) 234₅
(b) 403₅

7. Multiplication in Binary

Calculate the following in binary:
(a) 10001 × 11
(b) 110111 × 111

8. Solving for Unknown Variables

A man earns ₦5,000 in a month, and his wife earns ₦z. If their total monthly income is ₦9,500, find the value of z.

9. Word Problems on Age

A girl is x years old, and her brother is 5 years older than her.
(a) Find the sum of their ages.
(b) If their father is 25 years older than the girl, what is the difference between the sum of the children’s ages and their father’s age?

10. Algebraic Simplification

Simplify: (2x – y – y) – (5x – 3y) + 5