#### JSS3 Mathematics Exam Questions And Answers For Junior Secondary School Students (Jss3)

#### These Mathematics Exam Questions And Answers for JSS3 students have been compiled to serve as a reference material to aid teachers set tests and examination questions without much stress.

School pupils/tutors will find it very helpful in revision and exam preparation.

## CLASS: JSS3 SUBJECT: MATHEMATICS TIME: 2 HOURS

1. Factorize x2y2 – 42 A. x2(y2 – 4) B. xy(x2 – 2) C. (xy – 2)(xy + 2)

D. (x2y – 2)(x2y + 2)

2. Without using any calculator find 19.92 A. 421.01 B. 400.01 C. 396.01

D. 390.21

3. Factorize 8xy + 4x2y completely A. 2xy(4 + 2x) B. 4xy(2 + x) C. 4(2xy + x2) D. xy(8 + 4x)

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4. The values for a,b and c for x2 + 3x + 1 are ________ respectively A. 0,1 and 3 B. 1, 3 and 0 C. 1, 3 and 1 D. 3, 1 and 1

5. Find the HCF of 4a2b and 6ab A. 2 B. 2ab C. 8a2 D. 12

6. Find 25 x 49 + 64 x 25 by factorization A. 2825 B. 2805 C. 2500

D. 6525

6. Find the simple interest on N20000 for 2 years at 10% per annum for 2 years A. N4000 B. N2500 C. N4500 D.

7. Which of the following equations is used to find the principal A. P =TxR/Ix100 B. P =TxI/Rx100 C. P =Ix100/TxR D. P =Tx100/IxR

8. Which of the following equations is used to find the rate A. R =PxI/Tx100

B. R =PxT/Ix100 C. R =Ix100/RxT D. R =Ix100/PxT

9. Use the information below to answer questions 10-15 using 8754.08995

10. Round off to 2 decimal places A. 8750 B. 8754.08 C. 8754.00 D. 8754.09

11. Round of to 3 decimal places A. 8754.089 B. 8754. 080 C. 8754.090 D. 8754.0

12. Round of to 1 decimal place A. 9000 B. 8754. 0 C. 8754.1 D. 8754.09

13. Round off to 1 significant figure A. 9000 B. 8754.08995 C. 8754 D. 8

14. Round of to 2 significant figure A. 87 B. 88 C. 8800 D. 8754.09

15. Round of to 3 significant figure A. 875 B. 8750 C. 8754.090 D. 8754.089

16. Add 1012 to 10112 A. 100012 B. 10012 C. 10002 D. 100002

17.Simplify 110112 ¬- 11112 A. 10012 B. 11112 C. 01002 D. 11002

18. Convert 1012 to base 10 A. 610 B. 410 C. 1510 D. 510

19. Change 2210 to base 7 A. 307 B. 317 C. 137 D. 037

19. Add 2123 to 223 A. 10113 B. 11013 C. 10013 D. 12013

20. Simplify 304 – 134 A. 104 B. 114 C. 174 D. 164

21. Simplify 1112 x 1012 A. 100112 B. 1000112 C. 110012 D. 1100012

22. Convert 20113 to base 10 A. 4810 B. 5410 C. 5810 D. 5010

23. Simplify 213 + 223 A. 203 B.433 C. 1203 D. 303

24. Add 2056 to 3526 A. 1016 B. 20026 C. 10116 D. 10016

25.Find the negative difference between (6 + 12) and (9 – 12) A. -21 B. -3 C. -18 D. -12

**SECTION B**

** INSTRUCTION: **ANSWER ANY FIVE QUESTIONS FROM

** NOTE: ** QUESTION NO 1 IS COMPULSORY

- Calculate the compound interest on N000 at 10% for 3years.
- Convert 1100111
_{2 }to base 7 - The reciprocal of a certain number is given as 0.125. Find the number
- Find the product of and the sum of 2 and 2
- Factorize x
^{2 }+ 7x + 6 - Expand (3x + 4)(2x – 3)
- Factorize 4xy – 10ayz – 4x + 10a
- A cone of height 80mm is cut by a plane parallel to its base at a distance of 50mm from the base and a frustum of the cone is formed.
- Calculate the volume of the original cone if the volume the removed cone if the volume of the removal cone is 486mm
- If the original cone has a mass of 10kg, calculate the mass of the frustum.
- In the diagram below, CBIIDE, AD=5cm and DE=9cm. If the area of DAED is 50cm
^{2}, what is the area of quadrilateral CBED?

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