Reference no: EM131551949
Assignment
Find the difference.
1) - 48 - 48
A) 0 B) - 96 C)96 D)- 144
2) - 18 - (- 18)
A) 54 B)- 36 C) 36 D)0
3) -51 + (-51)
A) 102 B) -105 C)- 102 D)- 23
Multiply and round to the nearest hundredth.
4) - 6.72(- 0.16)(- 6.2)
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)
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)
A) -4 B)-1 C) -65 D)65
Identify the coefficient of each term.
7) z
A) z B)-1 C)1 D)0
8) 7x
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?
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 =
A) a=13 B) a=3 C)a= -3 D)a=9
11) 2p + 6 =
A) p= 8 B)p=2 C) p= -2 D) p=6
Solve the equation.
12) -37.1 = -5.3c
A) -31.8 B)7.0 C)2.0 D)31.8
Find the opposite
13) -1
A) 0 B) 1 C) Undefined D)-1
Solve the equation.
14) 6n - 8 = 22
A) 5 B) 28 C)24 D)11
15) 0.333x + 6 = 1.333x
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
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
A) Subtract 14 B)Add 9 C)Subtract 9 D)Add 14
18) x + 5.9 = 21.6
A) Subtract 5.9 B)Add 21.6 C) Add 5.9 D)Subtract 21.6
Find the absolute value.
19) |25|
A) -25 B) 0 C) 25 D)16
Express each quantity as a positive or negative number.
20) 10-pound loss
A) -10 pounds B) 10 pounds
Identify the group of terms as like or unlike.
21) 14b, 5, 11a
A) Like B) Unlike
Simplify.
22) - 6(8r + 3) + 3(10r + 5)
A) - 66r B)2r - 3 C) -18r + 3 D)-18r - 3
Identify the group of terms as like or unlike.
23) 2z, -9z
A) Like B)Unlike
Simplify.
24) 12 ÷ (- 6) + (- 3) · 6
A) 20 B) -16 C)-20 D)6
25) (18 - 42) ÷ (-4)
A) - 24 B) - 6 C) 28.5 D)6