1. Find the answer to this problem: (15/16) – (– 3/16)
A. –11/8
B. 3/4
C. –3/4
D. 11/8
2. Find the value of (–3/8) × (+8/15).
A. –1/3
B. –1/5
C. 11/15
D. 11/23
3. Remove the parentheses from the following expression: (2y + x) ÷ z.
A.2y+x +z
B. 2y/z + x/z
C. Z/2y + x
D. 2yz + xz
4. Identify the exponent in the term –3x2.
A. x
B. 2
C. 3
D. minus sign (–)
5. What is the first step you should take to solve the following expression? (2 ÷ 12) - 32 + 4 × 8 - 33
A. 32
B. 2 ÷ 12
C. –33
D. 4 × 8
6. Which one of the following expressions is a binomial?
A. x/y
B. 3a + 2b
C. –2x
D. 3m – 2n + 4
7. Perform the following division: (–1/6) ÷ (–3/7)
A. 3/42
B. –3/42
C. 7/18
D. –7/18
8. Perform the following calculation: (–16) – (–42)
A. –58
B. 26
C. 58
D. –26
9. What is the value of (–20.16) + (–3.9)?
A. –24.06
B. 24.06
C. 16.26
D. –16.26
10. Perform the following calculation: (+10) + (–45).
A. 35
B. –55
C. 55
D. –35
11. Multiply (–4.2)(–6.8).
A. –28.56
B. –285.6
C. 285.6
D. 28.56
12. Divide 12x4y4 by 3x2y.
A. 4x2y3
B. 9x6
C. 9x2y3
65 D. 4x y
13. Use the correct order of operations to solve the following problem: 6 + (15 × 3) × 2.
A. 102
B. 96
C. 84
D. 126
14. The number +10 can be used to indicate a
A. 10-degree rise in temperature.
B. decrease in salary of $10.
C. withdrawal of $10.
D. loss of 10 pounds.
15. Combine the like terms in the expression 6a – 4b – 2a + c – 3b + a.
A. 3a + b + c
B. 9abc
C. 5a – 7b + c
D. 8a + b + c
16. Remove the parentheses from the following expression, and combine like terms: 3(ax + b2 – c) + 2
22
A. (ax + b2 – c + 5
B. 3ax +3b2 – 3c + 2
C. 3(ax + 3b2 – 3c + 6
D. –3(ax – b2 + 3c – 6
17. Divide –50m3n5 by –5m2n2.
A. 10mn3
B. 45m5n7
C. –10mn3
D. –45m5n7
18. What is the term a–3 equal to?
A. 3a
B. 152a
C. 1/a3
D. 1
19. Find the quotient of 6a3 ÷ 3a.
A. 2a2
B. a2/2
C. 1/2a
D. 2a4
20. Use the correct order of operation to solve the following problem: 3 × (50 – 62) ÷ 2
A. 21
B. 69
C. 18
D. 57
21. If you're given two different numbers on a number line, what can you say for certain about the number that's farther to the right?
A. It's larger than the number to its left.
B. It's a positive number.
C. It's greater than zero.
D. It carries a negative sign.
22. Remove the parentheses from the following expression: (+6) – (+2)
A. 6 – 2
B. –6 – 2
C. –6 + 3
D. 6 + 2
23. Remove the parentheses from the following expression, and combine like terms: (a + b – c) + 3a – 2c
A. 2a – b + c
B. 2a – b – c
C. 4a + b + 3c
D. 4a + b – 3c
24. 10ac × 6ab × (–2bc) = ?
A. 2a + 2b +2c – 120
B. 2a + 2b + 2c + 14
C. 14a2b2c2
D. –120a2b2c2
25. Combine the like terms in this expression: –3x + 2xy + 4y – xy + 2x – 11y
A. 23X + y
B. –X+XY–7y
C. 2xy + 15
D. –7xy