Second Term Examination
Class : JSS 1
Subject : Mathematics
Duration : 2 Hours
Instruction : Answer all questions .
Read the questions carefully and choose from the options lettered a – d.
1. State the metric unit you would probably use to measure the length and thickness of a pencil.
(a) cm, cm (b) m, cm (c) cm, mm (d) cm, m
2. Round 33459 to the nearest hundred. (a) 33400 (b) 33000 (c) 33460 (d) 33500
3. Round 0.03171 to 2 s.f.
(a) 0.03 (b) 0.0317 (c) 0.031 (d) 0.032
4. From the list of numbers 12, -25, 15, -35 which number is the largest?
(a) 12 (b) -25 (c) 15 (d)-35
5. Find the value of 5 – (- 7) – 6.
(a) -8 (b) -6 (c) -41 (d) 6
6. Estimate the answer 69 x 88.
(a) 6072 (b) 6300 (c) 5600 (d) 4800
7. The temperature of a place was – 12°C in the night but in the afternoon rises by 7°C. What is the noon temperature?
(a) – 5°C (b) 12°C (c) – 19°C (d) 19°C
8. What is the coefficient of x in the expression 7 – 9x ?
(a) 9 (b) 7 (c) – 9 (d) – 2
9. Simplify: 9a + a – 12a – 3a.
(a) 5a (b) – 6a (c) 15a (d) – 5a
10. Simplify: 7x + y – 4x – 3y
(a) 11x + 4y (b) 3x + 4y (c) 3x + 2y (d) 3x – 2y
11. Expand 5(2x – 3)
(a) 10x – 3 (b) 2x – 15 (c) 15 – 10x (d) 10x – 15
12. Given that the perimeter of a rectangle is 35cm and its length is 9cm. Find the width.
(a) 8.5cm (b) 8cm (c) 7cm (d) 7.5cm
13. Subtract -9 from the sum of -8 and 10
(a) 27 (b) 11 (c) -7 (d) 9
14. Calculate the area of a triangle with base 8cm and height 5cm.
(a) 40cm² (b) 13cm² (c) 25cm² (d) 20cm²
15. Find the perimeter of a semi – circle with diameter 14cm.
(a) 22cm (b) 36cm (c) 46cm (d) 16cm
16. What is the value of 9 in the number 80 009 007 001 055.
(a) 90 billion (b) 9 billion (c) 900 thousand (d) 9 millions
17. 3500 divided by 20 is ________
(a) 1705 (b) 1075 (c) 175 (d) 1750
18. The factors of 12 are _________________
(a) 2, 3, 4 (b) 2, 3, 6 (c) 1, 2, 3, 4, 6 (d) 1, 2, 3, 4, 6, 12
19. Which of the following is not a proper fraction?
(a) 1/4 (b) 3/4 (c) 3/2 (d) 5/8
20. Express 240 as a product of it prime factor in index form.
(a) 2³x 3 x 5 (b) 2⁴ x 3 x 5 (c) 3 x 4² x 5 (d) 2² x 3 x 4 x 5
21. Which of the following is not equivalent to 2/5?
(a) 6/10 (b) 8/20 (c) 16/20 (d) 20/50
22. The L.C.M of 4, 6 and 8 is ________
(a) 8 (b) 12 (c) 32 (d) 24
23. A woman bought 250 mangoes and 50 of them were bad. What fraction of the original number of mangoes were good.
(a) 1/5 (b) 3/5 (c) 4/5 (d) 7/10
24. Express 67.95 to the nearest tenth.
(a) 67.0 (b) 68.0 (c) 67.90 (d) 67.9
25. What is 0.004686 to 3 significant figures?
(a) 0.005 (b) 0.00469 (c) 0.00470 (d) 0.00468
26. Estimate 69 x 88
(a) 6072 (b) 6300 (c) 5600 (d) 4800
27. Round off 7.3674 to 3 d.p.
(a) 7.367 (b) 7.370 (c) 7.37 (d) 7.368
28. Add 1110two to 111two.
(a) 11010two (b) 10101two (c) 10011two (d) 101001two
29. 500cm as a fraction of 20m is ________
(a) 1/4 (b) 2/5 (c) 1/5 (d) 1/40
30. How many factors has a prime number?
(a) 1 (b) 3 (c) 2 (d) None
31. Convert 45ten to binary number
(a) 1101101two (b) 101011two (c) 101101two (d) 100101two
32. State the metric unit you would probably use to measure the length and thickness of a pencil.
(a) cm, cm (b) cm, mm (c) m, cm (d) cm, m
33. The value of 18 + 27 ÷ 3 is ______.
(a) 15 (b) 18 (c) 27 (d) 21
34. Round 33459 to the nearest hundred.
(a) 33400 (b) 33000 (c) 33460 (d) 33500
35. Convert 100101two to base ten. (a) 307ten (b) 63ten (c) 37ten (d) 73ten
36. The sum of the L.C.M and H.C.F of 6, 9 and 12 is (a) 36 (b) 108 (c) 30 (d) 39
37. Simplify: 2 1/4 x 8/15 ÷ 3 1/3 (a) 2/5 (b) 4 (c) 1 1/6 (d) 9/25
38. Express 269.91 to the nearest whole number. (a) 300 (b) 271 (c) 260 (d) 270
39. Find the sum of – 15 – 6 + 9. (a) 12 (b) 18 (c) – 22 (d) – 12
40. The temperature of a place dropped from -7°C to – 11°C. What was the drop in the temperature?(a) 4°C (b) – 4° C (c) 18°C (d) – 18°C
Section B : Theory
1a. If x = 0, y = 4, z = 5. Evaluate (5yz – 2x)/z²
1b. Solve the equation using the balancing method: 12y – 4 = 2
2a. Simplify: 4m – 5n + 3 – 6m + 8n + 2m – 1
2b. Use the Number line to find the value of 5 + 1 – 3
3a. A weight (x + 3) kg, B weight (x – 4) kg and C weight (x + 8) kg. Subtract the weight of C from the sum of the weight of A and B.
3b. Find the perimeter of a rectangle with length (5 + 2x) and breadth 6x.