1.
Find the product 4 · 6 · 5 mentally.
A.
80
B.
100
C.
120
D.
20
Hint
2.
Name the property shown by the statement 6(2
m
) = (6 · 2)
m
.
A.
Associative Property of Addition
B.
Commutative Property of Multiplication
C.
Associative Property of Multiplication
D.
Commutative Property of Addition
Hint
3.
Simplify 5 ·
x
· 10.
A.
15 +
x
B.
50 +
x
C.
50
x
D.
15
x
Hint
4.
Simplify (
r
+ 6) + 27.
A.
r
+ 21
B.
33
r
C.
r
+ 33
D.
6
r
+ 27
Hint
5.
Which is
not
a valid property?
A.
Associative Property of Addition
B.
All of these are valid.
C.
Associative Property of Multiplication
D.
Associative Property of Subtraction
Hint