5th grade foundations (Eureka Math/EngageNY)
- Associative property of multiplication review
- Associative property of multiplication
- Distributive property review
- Distributive property
- Area & perimeter word problem: table
- Area & perimeter of rectangles word problems
- Represent rectangle measurements
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.
Let's start by grouping the
and the together. We can evaluate the expression step by step.
Now let's group the
and the together.
Regrouping does not change the answer!
Want to learn more about the associative property? Check out this video.
Want to know why the associative property is helpful? Check out this article.
Which expressions are equivalent to
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(14 votes)
- 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(3 votes)
- I don't understand the difference from Commutative and Associative because both deal with you moving the numbers in the problem and the equation still has the same answer, I was just wondering.(3 votes)
- What's the main difference between the words communitive and associative? Aren't both meaning "order doesn't matter"?(2 votes)
- The commutative property tells you that you can change the order of the numbers when adding or when multiplying. It basically let's you move the numbers.
2 + 3 + 5 = 5 + 3 + 2 = 2 + 5 + 3, etc.
The associative property lets us change the grouping, or move grouping symbols (parentheses). It does not move / change the order of the numbers.
(2 + 3) + 5 = 2 + (3 + 5).
When you combine the 2 properties, they give us a lot of flexibility to add numbers or to multiply numbers.(2 votes)