MATHEMATICS FIRST TERM EXAMINATION JSS 2

1st Term

 

Examination malpractices may lead to a repeat of the subject or suspensions don’t be involved.

 

Subject: Mathematics        Class: J S S 2 SECTION A    Time: 2hrs

1. List all the factors of 20 (a) 1,3,4,5,15,20 (b) 1,2,4,5,10,20 (c)0,2,4,6,10, 20 (d) 1,4,10,20
2. Express 48 as a product of its prime factors (a) 23 x 3 (b) 24 x 3 (c) 25 x 30 (d) 32 x 24
3. Express 125 as percentage of 500 (a) 40% (b)25% (c) 60% (d) 30%
4. Express 60% as a fraction in its simplest form (a) 3 (b) 4 (c) 3
5. In a school 260 out 400 students are girls. What percentage of the students are boys? (a) 42.5% (b) 35% (c) 38.5% (d) 21.5%
6. The total number of students in a school is 720. There are 300 boys in the school. What is the ratio of girls to boys (a) 7:5 (b) 2:3 (c) 5:7 (d) 3:2
7. Evaluate 15-3-(+17) (a) -5 (b) -10 (c)
8. Evaluate √3218(a) 134(b) 11/4(c) 123(d)1135 (d) 8
9. If x = -3, y = -5, evaluate xy+(x-y) (a)
10. Which of these numbers are odd numbers 7,2,6,13,15,17,8 (a) 7,2,8,9 (b) 2,6,8 (c) 9,7,8,17 (d) 7, 9,13,15,17
11. Express 3.26 x 102 in ordinary form (a) 3260 (b) 326 (c) 0.326 (d) 3406
12. Express 0.0075 in standard form (a) 7.5 x 10-3 (b) 7.5 x 100 (c) 7.5 x 10-2 (d) 7.5 x 10-1
13. Simplify 2x-4 x 5x2 (a) 10x7 (b) 10x -2(c) 15x2 (d) 8x-4
14. Simplify 3x2 x 7x3 x x4 (a) 21x9 (b) 21x6 (c) 21x4 (d) 21x7
15. Round off 42.06823 to 3 decimal places (a) 42.068 (b) 42.07 (c) 42.16 (d) 42.06
16. Change 51 to decimal number (a) 5.24(b) 5.025 (c) 50.25 (d) 4.02523 (b) 17 (c) 13 (d) 20
17. If P=-5, q=-3, evaluate 7𝑝+2𝑞 (a) –292𝑝𝑞    30(b) 29  (c) -111  (d) 11130    30    30
18. Simplify 2x6 x 4x2 (a) 8x6 (b) 8x8 (c) 2x8 (d) 8x4
19. X + 20 = 32, find the value of x (a) 15 (b) 12 (c) 10 (d) 8
20. Evaluate √100 − 36 (a) 4 (b) 10 (c) 8(d) 6
21. Simplify 10a – (3a + 1) (a) 7a – 1 (b)– 13a – 1 (c) 7a + 1 (d) 13a + 1
22. Factorize x2y3 – xay2 (a) xy2 (xy – a)(b) x2y3 (xy – xa) (c) xy(x2y1 – xa) (d) x – y (xy + a)
23. Simplify 3𝑥5 𝑥 4𝑥3 (a) 12x (b) 4x5 (c)6𝑥12x2x8 (d) 2x5
24. Find the LCM of 12, 36 and 48 (a) 124 (b) 104 (c) 200 (d) 144
25. Solve for x in X-10 = 15 (a) x = 10 (b) x = 25 (c) x = 5 (d) x = -10
26. Express 56 as improper fraction (a)741 (b) 24 (c) 45 (d) 32 7    7    7    9
27. Express 40% as fraction to its lowest form (a) 2 (b) 4 (c) 7 (d)4
28. Find the prime factors of 600 (a) 23 x5    1010    53 x 52 (b) 22 x 33 x 5 (c) 22 x 31 x 52(d) 23 x 32 x 54
29. 33 x 42 x 50 = y, what is the value of y (a) 331 (b) 330 (c) 332 (d) 342
30. Multiply 24.5 x 0.5 (a) 12.40 (b)11.12 (c) 12.25 (d) 21.05
31. Let B= 5, C= 8. Find the value of B+C-B (a) 10 (b) 13 (c) 8 (d) 20
32. Find the value of 5-2 x 30 (a) 12022512515
33. Change 4 to decimal number (a) 0.55(b) 0.25 (c) 0.8 (d) 0.45
34. Multiply 0.06 by 0.28 (a) 0.0168 (b)0.289 (c) 0.520 (d) 3.205
35. A students writes 32 lines of a letter. Each lines has 14 words.
36. Estimate to 1s.f, the number of words the letter contains. (a) 412 words (b) 420 words (c) 400 words (d) 410 words
37.     Y +30 – 10 =42. Find the value of y (a) y=22 (b) y= 16 (c) y= 10 (d) y=40
38. Change 2/5 to decimal number (a) 0.08 (b) 0.8 (c) 0.16 (d) 0.4
39. Find the HCF of these numbers 16, 24 and 32. (a) 6 (b) 8 (c) 4 (d) 16
40. Simplify 3 + 5 x 2 (a) 2 (b) 4 (c) 3 (d) 14    8    5
41. Evaluate 3𝑥 𝑋 4𝑦(a) 𝑥𝑦(b) 1 (c) 24𝑥𝑦(d)4𝑥𝑦12𝑥𝑦2𝑥 𝑋 6𝑦2𝑥𝑦2𝑦    12𝑥𝑦

 

SECTION B

Answer three questions only from this section. Each question carry equal marks.

1a.    List all the factors of the following numbers.

48 ii.    96    iii.    120 1b.    Express the following numbers as

product of prime factors i.    840    ii.    3000

2a.    evaluate the following: (i) √81 𝑥 64

25

ii    7(m – 2)    3(x – 2)

 

7m – 14

 

5b.    Remove the bracket and simplify. 4(2x + 5) -2 (3x-1) – (3x +2) + 5x

 

(ii) √0.0001

2b.    Estimate 6.21 𝑥 9.87

19.5

 

3a.    Evaluate the following.

 

(a) 3√27 ÷ √25 (b) (24)2    (c)

8    5

 

√0.0049

3b.    Round off (i) 36.50687 (ii) 0.0862 to 2 decimal places.

Simplify the following

5x + 3 (y – x) ii. (−𝑥) x (−2𝑦) iii.

   

−𝑦    −𝑥2

3(2a + 1) -2(a – 2)

5a.    complete the following expansion and factorization problems.

i    a (x + 5)    4(x – 3)

 

4x – 12

ELIAS INTERNATIONAL SECONDARY SCHOOL MID-TERM EXAMINATON

 

Subject: Mathematics    Class: J.S.2

List all the factors of 16 (a) 1,2,3,6,10,16

(b) 1,2,4,8, and 16.

(c) 1,2,6,8 and 16.

(d) 1,4,5,9,12.

Express 48 as a product of it’s prime

factors (a) 23x3 (b) 24x3 (c) 25x30 (d) 32x24

PART B

Answer one question in this part. Each question carries equal marks.

1a.    List all the factors of the following numbers. (i) 60 (ii) 36 (iii) 64

(b)    Express the following in standard form. (i) 0.00728 (ii) 28000

Express the following numbers as product of prime factors (i) 840 (ii) 3000

2b    Evaluate the following:

5 14

to decimal number (a) 5.25 (b)

(i) √6 1

4

√5 4

9

√ 48

75

5.025 (c) 50.05 (d) 4.02

4. Express 120/200 as a percentage. (a) 62% (b) 62% (c)60% (d) 45%

Evaluate √32 (a) 1 1 (b) 1 2 (c) 1 3

(d)

18    3    3    4

1 1

4

5.Express 0.0086 in standard form (a) 8.6×10-3 (b) 6.6×102 (c) 8.6×10-4 (d) 8.6×103

6. Change 2 2 to decimal number (a) 2.4

5

(b) 0.5 (c) 2,6 (d) 12/5

Express 60% as a fraction in its lowest form. (a) 3/7 (b) 4/5 (c) 3/5

(d) 2/5

7. Evaluate 8-9-(-4) (a) 3 (b) -5 (c) -3

(d) 4

X + 20 = 35, find the value of x (a)15 (b)20 (c)10 (d)-15