Arrays
What is an array?
A set that shows equal groups in columns and rows
What does the commutative property mean?
Numbers can be multiplied in any order.
2x4 is the same as 4x2
What are the two factors of 8?
2x4
8x1
Show an array:
4x3
XXXX
XXXX
XXXX
What is a factor?
A number that is multiplied by another number to get a product.
4x2=8
The 4 and the 2 are the factors within this number sentence.
What is the product of 6x2
12
6x2=12
Show an array:
7X2
XXXXXXX
XXXXXXX
Identify the factors and the product in this equation:
3 x 12 = 36
3 and 12 are the factors.
36 is the product.
What are the factors within this multiplication sentence?
5x3=15
The factors are 5 and 3 in the multiplication sentence 5x3=15.
Sally plants a garden of flowers with 4 rows of 5. How many flowers does Sally have?
Sally has 20 flowers.
7 x 4
28
What is the commutative property of 3x6?
6x3
What multiplication sentence is this array representing?
X X X X X X
X X X X X X
X X X X X X
6X3
What is a product?
The answer to a multiplication equation
4x2=8
The 8 is the product.
Which equation CORRECTLY shows the commutative property?
a) 5 x 3 = 8
b) 3 x 5 = 5 x 3
c) 15
d) 5 + 3 = 3 + 5
b) 3 x5 = 5 x 3