- 1. 1. Convert [[1264]]_8 to base ten
A) 171 B) 692 C) 629 D) 117
- 2. 2. Convert [[211]]_3 to base eight
A) 62 B) 7 C) 26 D) 11
- 3. 3. In what base is the addition 465 + 24 + 225 = 1050?
A) 9 B) 7 C) 6 D) 5
- 4. 4. Evaluate 11110 ÷ 110
A) 101 B) 1011 C) 110 D) 1100
- 5. 5. Simplify 0.0589 + 7.382 - 0.7953 correct to 2 decimal places.
A) 6.64 B) 8.24 C) 8.20 D) 6.65
- 6. 6. Simplify 125-2/3 x 15
A) ⅔ B) ⅗ C) ⅚ D) 13
- 7. 7. Evaluate (3.69 x 105) ÷ (1.64 x 10-3)
A) 2.25 x 108 B) 2.25 x 10-2 C) 2.25 x 10-8 D) 2.25x 102
- 8. 8. Express the sum of 6.03 x 106 and 2.17 x 105 in standard form.
A) 62.47 x 106 B) 624.7 x 1011 C) 6.247 x 1011 D) 6.247 x 106
- 9. 9. Simplify (1/16)-¾ + 5 (90)
A) 2/3 B) 3½ C) 7/25 D) 13
- 10. 10. Evaluate 2 ÷ (64/125)-⅔
A) 2 ⅛ B) 5 ⅚ C) 3 ½ D) 1 ⁷/25
- 11. 11. Simplify 125⅓ x 49½ x 10-1
A) 3 ½ B) 35/5 C) 2 ⅓ D) 6 ⅞
- 12. 12. Evaluate [[log]]_10 45 + [[log]]_10 9-1 - [[log]]_10 2-1 without using table
A) 5 B) 10 C) 2 D) 1
- 13. 13. Evaluate [[110100]]_2 ÷[[100]]_2
A) [[1010]]_2 B) [[1111]]_2 C) [[1001]]_2 D) [[1101]]_2
- 14. 14. Approximate 65009.269 to 1 significant figure.
A) 65009.300 B) 650009.270 C) 70000.000 D) 65010.000
- 15. 15. Express the number 0.0099687 correct to four decimal places
A) 0.0010 B) 0.0100 C) 0.0090 D) 0.0099
- 16. 16. Solve [[log]]_3 (2x + 1) - [[log]]_3 (x - 3) = 2
A) 4 B) 2 C) 8 D) 3½
- 17. 17. Simplify log 27/ log 9
A) 3/4 B) 1½ C) 2 D) log 3/2
- 18. 18. Evaluate [[log]]_10 (⅓ + ¼) + 2 [[log]]_10 2 +[[log]]_10 (3/7)
A) 0 B) -3 C) ⅚ D) 1
- 19. 19. Evaluate without using calculator, [[log]]_10 √30 - [[log]]_10 √6 + [[log]]_10 √2
A) 3/2 B) -3 C) ½ D) 1
- 20. 20. Evaluate ([[203]]_4)2
A) 10012 B) 103021 C) 2030 D) 12002
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