Arrays and Equal Groups

Front

What is an array in mathematics?

Back

An array is a systematic arrangement of objects, usually in rows and columns, used to represent multiplication and division.

Tags

CCSS.3.OA.A.1

Front

How can you represent the multiplication equation 3 x 5 using an array?

Back

You can represent 3 x 5 with an array of 3 rows and 5 columns, totaling 15 objects.

Tags

CCSS.3.OA.A.1

Front

What does the term 'equal groups' refer to in multiplication?

Back

Equal groups refer to groups that have the same number of items, which can be used to represent multiplication problems.

Tags

CCSS.3.OA.D.9

Front

If you have 4 groups of 3 apples, how can you express this as a multiplication equation?

Back

This can be expressed as 4 x 3.

Tags

CCSS.3.OA.A.1

Front

What is the product in a multiplication equation?

Back

The product is the result of multiplying two or more numbers together.

Tags

CCSS.3.OA.A.1

Front

How do you find the total number of items in an array?

Back

To find the total number of items in an array, multiply the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What multiplication equation corresponds to an array with 4 rows and 5 columns?

Back

The multiplication equation is 4 x 5.

Tags

CCSS.3.OA.A.1

Front

What is the relationship between multiplication and repeated addition?

Back

Multiplication is a shortcut for repeated addition; for example, 3 x 4 is the same as adding 4 three times (4 + 4 + 4).

Tags

CCSS.3.OA.A.1

Front

How can you visualize the multiplication equation 3 x 4?

Back

You can visualize it with an array of 3 rows and 4 columns.

Tags

CCSS.3.OA.A.1

Front

What is the significance of the commutative property in multiplication?

Back

The commutative property states that changing the order of the factors does not change the product; for example, 3 x 4 is the same as 4 x 3.

Tags

CCSS.3.OA.B.5