Commutative
Associative
Array
Rows and Columns
Definitions
100
5 x 3
What is 3 x 5
100
3 x (4 x 5)
What is (3 x 4) x 5
100
State 3 x 7 as an array
What is three rows of seven
100
There are three rows with eleven items in each
What is 3 x 11 or 33?
100
You can multiply numbers in any order.
What is the commutative property of multiplication?
200
5 x 6
What is 6 x 5?
200
Associate means this
What is group
200
5 x 9 is the same as this array.
What is five rows of nine items?
200
There are five rows with six items in each
What is 5 x 6?
200
You can change the grouping of factors.
What is the Associative Property of Multiplication?
300
345 x 543
What is 543 x 345?
300
The expression (3 x 5) x 10
What is 3 x (5 x 10)
300
12 x 6
What is twelve rows of six?
300
You have seven rows with three items in each.
What is 7 x 3?
300
You have a problem written as the expression 2 x 5 x4 and your teacher writes the problem as 2 times the expression 5 x 4. You know that you are using this property.
What is the associative property?
400
6,342 x 2
What is 2 x 6,342 ?
400
3 x the expression (2 x 5)
What is (3 x 2 ) x 5
400
3 x 9
What is three rows of nine?
400
There are 7 rows of cans on the grocery shelf and there are 5 can in each row. Your mother ask how many cans are there.
What is 35?
400
This is a quicker way to add a large number of things.
What is multiplication?
500
How you commute 10 x 3
What is 3x10 ?
500
Another way to write (25 x 2) x 4
What is 25 x (2 x 4)
500
200 x 8
What is two hundred rows of eight?
500
The choir sits on a stage with 20 benches. Each bench can hold 8 adults. This is the size of the choir.
What is 160?
500
You can multiply two numbers in any order.
What is the Commutative Property of Multiplication?