- 1. 1. Approximate 29.678 to 2 significant figures
A) 20
B) 30
C) 29
D) 29.0
- 2. 2. Round off 14.07 ÷ 6.7 to the nearest whole number
A) 3
B) 2⅕
C) 2
D) 2⅘
- 3. 3. Approximate 18624 to the nearest thousand
A) 18700
B) 18600
C) 19000
D) 18000
- 4. 4. Round off 2.1234 to the nearest thousandth
A) 2.123
B) 2.13
C) 2.1234
D) 2.124
- 5. 5. Convert (45)_10 to a binary number
A) (101101)_2
B) (1100101)_2
C) (111101)_2
D) (101100)_2
- 6. 6. Convert 111000 into a base ten number.
A) (56)_10
B) (63)_10
C) (41)_10
D) (11)_10
- 7. 7. Change (49)_10 to a base six number
A) (21)_6
B) (121)_6
C) (434)_6
D) (1021)_6
- 8. 8. Convert (432)_5 to a base ten number
A) (121)_10
B) (129)_10
C) (217)_10
D) (117)_10
- 9. 9. Calculate (1111101)_2 ÷ (101)_2
A) (11101)_2
B) (11001)_2
C) (11110)_2
D) (10001)_2
- 10. 10. Simplify (-3) - (+7) + (+14)
A) -4
B) +24
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 = 28
B) f = 6
C) f = -6
D) f = -28
- 13. 13. Simplify 3m - 8m - 2m + 16m - 4m
A) -21m
B) -5m
C) 21m
D) 5m
- 14. 14. Simplify 18a - 3b - 6a + 10b
A) 12a -7b
B) 12a + 7b
C) -19ab
D) 19ab
- 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) 180 - 2n
C) 180 x 2n
D) 2n - 180
- 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/3 + 2
B) 2x - 2
C) 2x/3 - 2/6
D) 2x/3 - 2
- 17. 17. Simplify 5x³ ÷ x²
A) 5x
B) 5x²
C) 5
D) 5x⁵
- 18. 18. Simplify 40pq² ÷ 8pq
A) 5p²q
B) 5pq
C) 5pq²
D) 5q
- 19. 19. Simplify 42xy ÷ 7y
A) 6xy
B) 6y
C) 6xy²
D) 6x
- 20. 20. Simplify 6ab² x 6a²ba
A) 36a²b²
B) 36a²b³
C) 36a³b³
D) 36a³b²
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