Arrays

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 multiplication using an array?

Back

Multiplication can be represented by the number of rows multiplied by the number of columns in an array.

Tags

CCSS.3.OA.A.1

Front

What is the relationship between repeated addition and multiplication?

Back

Repeated addition is a way to express multiplication; for example, 4 + 4 + 4 can be expressed as 3 x 4.

Tags

CCSS.3.OA.A.1

Front

What does the term 'columns' refer to in an array?

Back

Columns refer to the vertical arrangements of elements in an array.

Tags

CCSS.3.OA.A.1

Front

What does the term 'rows' refer to in an array?

Back

Rows refer to the horizontal arrangements of elements in an array.

Tags

CCSS.2.OA.C.4

Front

If an array has 3 rows and 4 columns, what is the total number of elements?

Back

The total number of elements is 3 x 4 = 12.

Tags

CCSS.2.OA.C.3

Front

How can you determine the number of columns in an array?

Back

The number of columns can be determined by counting the vertical groups of elements.

Tags

CCSS.2.OA.C.4

Front

What is the equation for an array with 5 rows and 3 columns?

Back

The equation is 5 x 3 = 15.

Tags

CCSS.3.OA.A.1

Front

How can you express the total of an array using repeated addition?

Back

You can express the total by adding the number of elements in each row together.

Tags

CCSS.2.OA.C.4

Front

What is the formula to find the total number of elements in an array?

Back

The formula is: Total Elements = Number of Rows x Number of Columns.

Tags

CCSS.2.OA.C.3