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 numbers or quantities.

Tags

CCSS.3.OA.A.1

Front

How do you determine the total number of items in a rectangular array?

Back

Multiply the number of rows by the number of columns.

Tags

CCSS.3.OA.A.2

Front

What are rows in an array?

Back

Rows are the horizontal lines of items in an array.

Tags

CCSS.2.OA.C.4

Front

What are columns in an array?

Back

Columns are the vertical lines of items in an array.

Tags

CCSS.3.OA.A.1

Front

What is repeated addition?

Back

Repeated addition is the process of adding the same number multiple times, which is related to multiplication.

Tags

CCSS.3.OA.A.1

Front

How can you represent the total number of items in an array using repeated addition?

Back

By adding the number of items in each row together.

Tags

CCSS.2.OA.C.4

Front

If an array has 4 rows and 4 columns, how many total items are there?

Back

16 items (4 rows x 4 columns = 16).

Tags

CCSS.2.OA.C.4

Front

What is the relationship between arrays and multiplication?

Back

Arrays can be used to visualize multiplication, where the number of rows and columns represents the factors.

Tags

CCSS.3.OA.A.1

Front

How can you express the total number of items in an array with a multiplication sentence?

Back

By writing the number of rows multiplied by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What is the formula for finding the area of a rectangle using an array?

Back

Area = length x width, which corresponds to rows x columns in an array.

Tags

CCSS.4.NBT.B.5