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## Arithmetic (all content)

### Course: Arithmetic (all content)>Unit 3

Lesson 3: Properties of multiplication

# Associative property of multiplication review

Review the basics of the associative property of multiplication, and try some practice problems.

### What is the associative property?

The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product.
Example:
5, times, 4, times, 2
Let's start by grouping the start color #11accd, 5, end color #11accd and the start color #11accd, 4, end color #11accd together. We can evaluate the expression step by step.
empty space, left parenthesis, start color #11accd, 5, times, 4, end color #11accd, right parenthesis, times, 2
equals, start color #11accd, 20, end color #11accd, times, 2
equals, 40
Now let's group the start color #7854ab, 4, end color #7854ab and the start color #7854ab, 2, end color #7854ab together.
empty space, 5, times, left parenthesis, start color #7854ab, 4, times, 2, end color #7854ab, right parenthesis
equals, 5, times, start color #7854ab, 8, end color #7854ab
equals, 40
Regrouping does not change the answer!

## Practice

Problem 1
• Current
Which expressions are equivalent to start color #11accd, left parenthesis, 9, times, 2, right parenthesis, times, 5, end color #11accd ?

Want to try more problems like this? Check out this exercise.

## Want to join the conversation?

• The problem is that I sometimes get confused and the answer is wrong
• Its okay just keep trying and you'll get it done in under 30 seconds. =D
• why did it put the answer for the wrong equation if he made the mistake in step 2 the answer should of been 80, 80 was the correct answer
• y=-3 0(-3)+(-7) 8,345.271
• why was it so easy love it
• why did it push me back when I went to another Question It is very hard why
• how do u find the answer
• i am not getting this a little bit
• The questions are easy if you do them more and more.