Properties of Multiplication
What property is being used?
(3 × 2) × 5 = 3 × (2 × 5)
Associative Property of Multiplication
Which facts can you use to find 3 × 8? Select all that apply.
a. 2 x 8 and 1 x 8
b. 3 x 2 and 3 x 6
c. 8 x 8 and 3 x 3
d. 0 x 3 and 8 x 8
A and B
A large array was broken into a 5 × 5 array and a 3 × 5 array. What was the large array?
a. 8 x 8
b. 8 x 5
c. 8 x 10
b
Solve (4 × 5) + (4 × 5)
20 + 20 = 40
8 x 5 = 40
Select each expression that is equivalent to (4 × 5) + (4 × 5).
a. 4 x (4 x 5)
b. 4 x 5
c. 8 x 5
d. (4 x 2) x 5
D and C
In the library there were 2 boxes of nonfiction books on each table. There were 3 tables.
There were 8 nonfiction books in each box. How many nonfiction books were in the library?
2 x 3 = 6 boxes total
6 boxes x 8 in each = 48 nonfiction books
Solve (3 × 2) × 6
3 x 2 = 6
6 x 6 = 36
Maggie organizes her pictures into a 4 × 9 array. How can Maggie break apart her array? Select all that apply.
a. (2 x 9) + (2 x 9)
b. (4 x 9) + (4 x 9)
c. (4 x 7) + (4 x 2)
d. 4 x (4 x 9)
A and C
Sheila wants to know how many days there are in 6 weeks. One week has 7 days. Write and solve an expression to show how many days there are in 6 weeks.
7 x 6 = 42 days in 6 weeks
Draw an array to show 4 rows and 8 columns.
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
Angie arranged her counters like this.
x x x x x
x x x x x
x x x x x
Fill in the blank: (1 x 5) + ( ___ x 5)
2
Ally bought 8 packages of candy bars. Each package has 4 candy bars. Each candy bar weighs 3 ounces. Write an expression that gives the total weight of the candy bars.
8 x 4 x 3