- 1. 1. Convert 29 base ten to base two.
A) 11101 base two
B) 1010 base two
C) 10110 base two
D) 101 base two
- 2. 2. Convert 111.101 base two to denary.
A) 2.625
B) 2.09
C) 7.09
D) 7.625
- 3. 3. Subtract 2255 in base six from 20035 base six.
A) 100
B) 101110
C) 13340
D) 500
- 4. 4. Find the value of 1111 base two multiplied by 1001 base two.
A) 10000111
B) 111011
C) 1110
D) 10111
- 5. 5. What is -28(mod 3)?
A) 90
B) 5
C) 2
D) 7
- 6. 6. Find the positive term of -9(mod 5)
A) -3
B) -1
C) 1
D) 3
- 7. 7. What is 10-29(mod 12)
A) 5
B) 7
C) 8
D) 9
- 8. 8. Find the value of 2 divided by 3 in mod 4.
A) 5.6
B) 10.8
C) 1
D) 2
- 9. 9. Change 15×10-³ to ordinary number.
A) 0.15
B) 0.0015
C) 0.015
D) 15
- 10. 10. What is the modular equivalent of -24(mod5)
A) 1
B) 2
C) 9
D) 5
- 11. 11. What is log 0.01?
A) -2
B) -1
C) 2
D) 1
- 12. 12. The log of 1000 is
A) 0
B) 2
C) 3
D) 1
- 13. 13. Evaluate log (0. 001 × 0.01)
A) Log 0.001 - log 0.01
B) Log 0.001 + log 0.01
C) Log 0.001 ÷ log 0.01
D) Log 0.001 × log 0.01
- 14. 14. Solve log 3√0.001
A) -1
B) 1
C) 3
D) -3
- 15. 15. Log ( 0.1 ÷ 0.0001
A) 3
B) -3
C) 1
D) -1
- 16. 16. Figures 5-9 is rounded off to
A) 2
B) 0
C) 1
D) -1
- 17. 17. . Figures 0-4 is rounded off to
A) 0
B) 1
C) 2
D) -1
- 18. 18. Round off 0.001234 to 3 s.f.
A) 0.00123
B) -0.00123
C) 0.00124
D) -0.00124
- 19. 19. Correct 123.4567 to 2 d.p
A) 123.457
B) 123.45
C) 123.456
D) 123.46
- 20. 20. Evaluate 0.125 + 1.25 to the nearest tenth
A) 0.4
B) 1.4
C) 1.3
D) 0.3
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