- 1. 1. Approximate 29.678 to 2 significant figures
A) 20
B) 29
C) 29.0
D) 30
- 2. 2. Round off 14.07 ÷ 6.7 to the nearest whole number
A) 3
B) 2⅕
C) 2⅘
D) 2
- 3. 3. Approximate 18624 to the nearest thousand
A) 19000
B) 18700
C) 18000
D) 18600
- 4. 4. Round off 2.1234 to the nearest thousandth
A) 2.1234
B) 2.124
C) 2.123
D) 2.13
- 5. 5. Convert (45)_10 to a binary number
A) (101100)_2
B) (111101)_2
C) (1100101)_2
D) (101101)_2
- 6. 6. Convert 111000 into a base ten number.
A) (41)_10
B) (11)_10
C) (63)_10
D) (56)_10
- 7. 7. Change (49)_10 to a base six number
A) (434)_6
B) (1021)_6
C) (21)_6
D) (121)_6
- 8. 8. Convert (432)_5 to a base ten number
A) (129)_10
B) (217)_10
C) (121)_10
D) (117)_10
- 9. 9. Calculate (1111101)_2 ÷ (101)_2
A) (11001)_2
B) (11101)_2
C) (11110)_2
D) (10001)_2
- 10. 10. Simplify (-3) - (+7) + (+14)
A) +24
B) -4
C) -24
D) +4
- 11. 11. Simplify 6x - 9x - (-5x)
A) -8x
B) +8x
C) -2x
D) +2x
- 12. 12. Solve 17 - f = 11
A) f = 6
B) f = -6
C) f = 28
D) f = -28
- 13. 13. Simplify 3m - 8m - 2m + 16m - 4m
A) -21m
B) -5m
C) 5m
D) 21m
- 14. 14. Simplify 18a - 3b - 6a + 10b
A) 12a + 7b
B) -19ab
C) 19ab
D) 12a -7b
- 15. 15. There are 180 people at a meeting. There were n men and n women. The rest were children. How many children were at the meeting?
A) 2n - 180
B) 2n + 180
C) 180 - 2n
D) 180 x 2n
- 16. 16. A woman has x eggs in a basket. She sells one-third of them to another woman. Two of the eggs get broken. How many eggs are left in the basket?
A) 2x - 2
B) 2x/3 - 2/6
C) 2x/3 + 2
D) 2x/3 - 2
- 17. 17. Simplify 5x³ ÷ x²
A) 5x²
B) 5
C) 5x⁵
D) 5x
- 18. 18. Simplify 40pq² ÷ 8pq
A) 5p²q
B) 5pq²
C) 5q
D) 5pq
- 19. 19. Simplify 42xy ÷ 7y
A) 6y
B) 6xy²
C) 6xy
D) 6x
- 20. 20. Simplify 6ab² x 6a²ba
A) 36a²b³
B) 36a³b²
C) 36a²b²
D) 36a³b³
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