MATHEMATICS JSS 1 SECOND TERM EXAMINATION

SECOND TERM

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

 Subject: MATHEMATICS           

Duration: 2 ½ HR             

Class: JSS 1

INSTRUCTION: ANSWER ALL QUESTIONS IN THIS SECTION

1. Approximate 5364 to 3 significant figures (a) 536      (b) 5300    (d) 5360    (d) 5370
2. 24350 rounded to the nearest thousand is ________ (a) 24000 (b)24350 (c) 20000 (d)25000
3. 4673 rounded to 2 decimal place is ________ (a) 178.00 (b)178.47 (c) 178.46 (d)170.47
4. Round up 0.007081 correct to 2 significant figure is ________________ (a) 0.01 (b)0.0070 (c) 0.0071 (d)0.00708
5. What is the value of the digit 7 in the number 624.97 (a) 7 hundreds   (b)7tens    (c) 7 hundredth    (d)7 tenths
6. What is the place value of 5 in figure 35296? (a) 500000 (b) 50000      (c) 5000   (d) 500
7. Evaluate 1001_two – 110_two (a) 11_two (b)101_two (c) 111_two (d)10_two
8. Calculate 1011_two × 11_two (a)10011_two (b) 100001_two (c)11101_two (d)10001two
9. Convert denary number 45 to a number in binary (a) 101101_two                             (b) 11010 _two    (c) 11011011 _two   (d) 10010 _two
10. Add 1110_two + 111_two (a) 11010_two (b)10101_two (c)101001_two (d)10011_two
11. Simplify 11_two + 111_two + 1101_two  (a)10101_two    (b) 10111_two         (c) 11011_two  (d) 11101_two    (e) 11111_two
12. Convert 78₁₀ to a number in base two (a) 11100110_two   (b) 11000111_two     (c) 1001111_two              (d) 1001110_two
13. Simplify 6 – (-12) (a) -8 (b) -18    (c) 8    (d) 18
14. 10 more than x is _____________(a) 10x (b) 10x+x (c)x + 10 (d)10 – x
15. Multiply y by itself , the answer is _____________ (a)2y (b) y² (c) 2y² (d)2y³
16. If x+5 = 50, what is the value of x (a) 45    (b) 52    (c) 55    (d) -55
17. If 5 is added to a number, the result is 17, what is the number? (a) 12 (b) 22   (c) 17    (d) 5x
18. If x+ 15 = 25 then x = __________ (a) 15 (b)25 (c)5 (d)10
19. b divided by 2 = ______________ (a) (b) (c) 2b (d) b – 2
20. Evaluate x – 18 + x when x = 9 (a) 9 (b)18 (c) 0 (d) -9
21. Base two numbers are called …………………………….. Number system.
22. Base ten numbers are called ____________________ Numbers system or _____________________ Number system
23. Base two numbers has how many digits? _________________________.
24. Expand 5(2x – 3) the result is __________________

25. If x = 5, what is the value of 2x² + 5 _____________
26. The coefficient of x in the expression 7 – 9x is ______________________
27. Shade thinks of a number. She doubles it and then adds 5 to the result. Her answer is 45. What number did Bola thinks of? ___________________________
28. Solve for p in the equation 8p +7 = 6p + 11, then p = ___________________
29. Adebola is x years old, four years ago, her age in terms of x is _______________
30. A man receives x naira. He spends #10 000 on house rent and has #15 000 left. What is the value of x? ______________________

SECTION B (THEORY)

Answer three questions only from this section

1a.     Calculate the value of 5.766 + 81.34 and give your answer correct to 3 significant figure (3s.f)                                                                       4mks

1b.     Round off 450 789 to the nearest hundreds (nearest 100’s) 2mks

1c.     Give 16.8695 correct to 2 d.p.                                                        2mks

1d.     Subtract 79 p from £3.25                                                               2mks

2a.     Write 356_eight in expanded form                                                         2mks

2b.     Evaluate 11001_two – 111_two leaving your answer in binary.                   2mks

2c.     What is the sum of 1011_two and 10011 _two                                        2mks

2b.     Multiply 1011_two by 101_two                                                        4mks

3a.     Convert binary number 1110011 to a base ten number               2mks

3b.   Convert the decimal number 59 to a binary number                           3mks

3c.     Round of 258.909 to the nearest whole number                                 2mks

3d.     Calculate the value of 425 x 24 and give your answer correct to 3s.f             3mks

4a.      Solve for x in the equation 5x – 4 = 16 .                                              2mks

4b.     Solve the equation  10 -2x =3x + 25                                                  3mks

4c.     If x=3, y=2 and z=2,  then Evaluate  z(5x-y)                                3mks

4d.     Simplify 5x+2y + 7x – y                                                                      2mks

5a.     If  p = -2, q = 5 and  r = 10, evaluate                                         3mks

5b.     Solve the equation     7 – 2y = 3                                                   2mks

5c.     Samuel thinks of a number, he multiplied it by 5 and added 3 to the answer. If the result is 13, what is the number he thinks of?                         3mks

5d.     Solve the equation 9x-20=8-5x                                                              2mks