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, that helps to visualize multiplication and division.

Tags

CCSS.3.OA.A.1

Front

How can repeated addition be used to represent multiplication?

Back

Repeated addition is the process of adding the same number multiple times, which is equivalent to multiplication. For example, 3 + 3 + 3 = 9 can be represented as 3 x 3 = 9.

Tags

CCSS.3.OA.A.1

Front

What is the relationship between multiplication and equal groups?

Back

Multiplication involves combining equal groups of objects. For example, 4 groups of 2 can be expressed as 4 x 2 = 8.

Tags

CCSS.3.OA.A.1

Front

What does it mean for groups to be equal in multiplication?

Back

Equal groups in multiplication means that each group contains the same number of items, which is essential for the multiplication operation to be valid.

Tags

CCSS.2.OA.C.3

Front

How do you write a multiplication equation for an array with 3 rows and 4 columns?

Back

The multiplication equation would be 3 x 4 = 12.

Tags

CCSS.3.OA.A.1

Front

What is the repeated addition equation for 5 groups of 3?

Back

The repeated addition equation is 3 + 3 + 3 + 3 + 3 = 15.

Tags

CCSS.2.OA.C.4

Front

How can you represent 2 rows of 8 using an array?

Back

You can represent it as an array with 2 rows and 8 columns, visually showing 16 total items.

Tags

CCSS.2.OA.C.4

Front

What is the multiplication equation for an array with 5 rows of 6?

Back

The multiplication equation is 5 x 6 = 30.

Tags

CCSS.3.OA.A.1

Front

What is the significance of equal groups in solving application-based problems?

Back

Equal groups help in understanding and solving problems related to multiplication and division, making it easier to calculate totals and share items.

Tags

CCSS.3.OA.D.9

Front

How do you determine 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