1.
Which statement illustrates the commutative property of addition?
A.
(5 + 3) + 6 = 14
B.
(5 + 3) + 6 = 5 + (3 + 6)
C.
(5 + 3) + 6 = 8 + 6
D.
(5 + 3) + 6 = (3 + 5) + 6
Hint
2.
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
x
+
y
+ 5
x
(3
y
)
B.
3(
x
+
y
) + 5(
x
+ 3
y
)
C.
3(
x
+
y
) + 5(3
xy
)
D.
3(
xy
) + 5(
x
+ 3
y
)
Hint
3.
Evaluate 2 × 17 × 5.
A.
170
B.
190
C.
160
D.
180
Hint
4.
Simplify 7(
b
+ 3) + 14.
A.
24
b
B.
42
b
C.
7
b
+ 17
D.
7
b
+ 35
Hint
5.
Evaluate 0.75 + 2.2 + 0.25 + 0.8.
A.
5
B.
6
C.
3
D.
4
Hint