MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Find the difference.
1) - 48 - 48 1) _______
A) 0 B) - 96 C) 96 D) - 144
2) - 18 - (- 18) 2) _______
A) 54 B) - 36 C) 36 D) 0
3) -51 + (-51) 3) _______
A) 102 B) -105 C) - 102 D) - 23
Multiply and round to the nearest hundredth.
4) - 6.72(- 0.16) (- 6.2) 4) _______
A) 6.67 B) 1.08 C) -6.67 D) -1.08
Indicate whether the equation illustrates the multiplication property of 0, the multiplicative identity, the commutative property of multiplication, or the associative property of multiplication.
5) (5 ∙ 5) ∙ 4 = 5 ∙ (5 ∙ 4) 5) _______
A) Multiplication property of zero
B) Associative property of multiplication
C) Multiplicative identity
D) Commutative property of multiplication
Simplify the expression.
6) 8(- 4) + 3(- 11) 6) _______
A) -4 B) -1 C) –65 D) 65
Identify the coefficient of each term.
7) z 7) _______
A) z B) -1 C) 1 D) 0
8) 7x 8) _______
A) x B) 4 C) 5 D) 7
Write an expression to state the problem and simplify.
9) What is the sum of 4 consecutive integers if the first integer is x? 9) _______
A) x + (x + 1) + (x + 2) + (x + 3); 4x + 6
B) x + x + x + x; 4x
C) 4x + x; 5x
D) Cannot be solved
Solve the equation.
10) 3a = 9 10) ______
A) a=13 B) a=3 C) a= -3 D) a=9
11) 2p + 6 = 10 11) ______
A) p= 8 B) p=2 C) p= -2 D) p=6
Solve the equation.
12) -37.1 = -5.3c 12) ______
A) -31.8 B) 7.0 C) 2.0 D) 31.8
Find the opposite
13) -1 13) _______
A) 0 B) 1 C) Undefined D) -1
Solve the equation.
14) 6n - 8 = 22 14) ______
A) 5 B) 28 C) 24 D) 11
15) 0.333x + 6 = 1.333x 15) ______
A) -6 B) 6 C) 12 D) 2.000
Decide whether the given number is a solution to the equation preceding it.
16) 7p + 6p - 5 = 99; 8 16) ______
A) Yes B) No
Indicate what must be done to each side of the equation in order to isolate the variable.
17) 9 = - 14 + x 17) ______
A) Subtract 14 B) Add 9 C) Subtract 9 D) Add 14
18) x + 5.9 = 21.6 18) ______
A) Subtract 5.9 B) Add 21.6 C) Add 5.9 D) Subtract 21.6
Find the absolute value.
19) |25| 19) ______
A) -25 B) 0 C) 25 D) 16
Express each quantity as a positive or negative number.
20) 10-pound loss 20) ______
A) -10 pounds B) 10 pounds
Identify the group of terms as like or unlike.
21) 14b, 5, 11a 21) _______
A) Like B) Unlike
Simplify.
22) - 6(8r + 3) + 3(10r + 5) 22) _______
A) - 66r B) 2r - 3 C) -18r + 3 D) -18r - 3
Identify the group of terms as like or unlike.
23) 2z, -9z 23) _______
A) Like B) Unlike
Simplify.
24) 12 ÷ (- 6) + (- 3) ∙ 6 24) _______
A) 20 B) -16 C) -20 D) 6
25) (18 - 42) ÷ (-4) 25) _______
A) - 24 B) - 6 C) 28.5 D) 6
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