1.
Which statement illustrates the commutative property of addition?
A.
(5 + 3) + 6 = 8 + 6
B.
(5 + 3) + 6 = (3 + 5) + 6
C.
(5 + 3) + 6 = 14
D.
(5 + 3) + 6 = 5 + (3 + 6)
Hint
2.
Which statement illustrates the associative property of multiplication?
A.
(2
x
)
y
= 2(
xy
)
B.
(2
x
)
y
= (
x
· 2)
y
C.
(2
x
)
y
=
y
(2
x
)
D.
(2
x
)
y
= 2
xy
Hint
3.
Write an algebraic expression for the verbal expression: three times the sum of
x
and
y
increased by five times the product of
x
and 3
y
.
A.
3(
xy
) + 5(
x
+ 3
y
)
B.
3(
x
+
y
) + 5(
x
+ 3
y
)
C.
3
x
+
y
+ 5
x
(3
y
)
D.
3(
x
+
y
) + 5(3
xy
)
Hint
4.
Evaluate 0.75 + 2.2 + 0.25 + 0.8.
A.
3
B.
5
C.
4
D.
6
Hint
5.
Simplify 2
x
+ 5
x
+ 4(
x
+ 3).
A.
11
x
+ 12
B.
23
x
C.
11
x
+ 3
D.
14
x
Hint