JSS1 EXAMINATION PAGE

Welcome to your 2nd term Examination on Basic calculation skills for JSS 1 2025/2026

Objective (Choose the correct option.) 30marks

1. Which of the following numbers is not a perfect square?

2. Find the value of √196 + √25

3. 2.5 + 3.4 =

4. Express 72 as a product of prime factors in index form.

5. Find the HCF of 18 and 24 using prime factors.

6. Convert 0.375 to a fraction in its simplest form.

7. Express 2/5 as a percentage.

8. 50% =

9. Evaluate: 3/4 + 2/3

10. Evaluate: 5/6 − 3/8

11. Simplify: 2.75 + 3.6 − 1.35

12. A trader bought a bag for ₦2,450 and sold it for ₦3,000. Find the gain.

13. Evaluate: 304 × 12

14. Divide 1,152 by 24

15. Evaluate: 3/5 × 10/9

16. A rope of length 9 m is cut into pieces of 3/4 m. How many pieces are obtained?

17. Evaluate: −7 + 12 − 5

18. Simplify: −3 − (−8)

19. Find the simple interest on ₦1,500 at 8% per annum for 2 years.

20. Half of Half is ______

Theory Questions (Answer any 6) 30marks

1.(a) Find the square root of 529 and 784. (b) Determine whether 200 is a perfect square.

2.Express 84 as a product of prime factors in index form. Hence find its HCF with 126.

3.(a) Convert 0.625 to a fraction in its simplest form. (b) Express 7/8 as a percentage.

4.The ratio of boys to girls in a class is 5 : 3. If there are 48 students, find: (a) Number of boys (b) Number of girls

5.Evaluate: (a) 7/12 + 5/6 (b) 9/10 − 3/5 (c) Multiply: 408 × 27 (d) Divide: 1,368 ÷ 24

6.A woman had ₦5,000. She spent ₦1,275.75 on food and ₦850.25 on transport. How much does she have left?

7.A rectangular field is 12 m long. A rope of length 3/4 m is used to measure it. How many times will the rope be used?

8.(a) Represent −6 + 9 on a number line. (b) Evaluate: −8 − (−5) + 3 (c)Find the simple interest on ₦3,500 at 6% per annum for 4 years