IXL | Multiply three numbers using properties | 3rd grade math

or

Find the product one step at a time.

2

×

4

×

10

=

×

4

×

10

=

×

10

=

ref_doc_title.

or

Learn with an example

question

Find the product one step at a time.

4

×

2

×

7

=

4

×

×

7

=

×

7

=

key idea

The associative property of multiplication says you can group factors in different ways and the product is still the same.

For example,

(

2

×

2

)

×

5

is equal to

2

×

(

2

×

5

)

.

The commutative property of multiplication says you can multiply two numbers in either order and the product is the same.

For example,

2

×

3

is equal to

3

×

2

.

solution

Here is one way to find the product.

First, multiply

4

×

2

.

4

×

2

×

7

=

(

4

×

2

)

×

7

=

8

×

7

Next, multiply

8

×

7

.

4

×

2

×

7

=

(

4

×

2

)

×

7

=

8

×

7

=

56

Looking for more? Try these:

Lesson: The associative property

Lesson: The commutative property

Lesson: Multiplication tables

or

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Teacher tools

Work it out

Not feeling ready yet? These can help:

P.9Multiplication facts up to 10

S.2Solve using properties of multiplication

Lesson: The associative property

Lesson: The commutative property

Lesson: Multiplication tables