Arrays

Front

What is an array in mathematics?

Back

An array is a systematic arrangement of objects, usually in rows and columns.

Tags

CCSS.3.OA.A.1

Front

How do you calculate 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.1

Front

If an array has 3 rows and 4 columns, how many total items are there?

Back

12 items (3 rows x 4 columns = 12).

Tags

CCSS.2.OA.C.4

Front

What is the direction of rows in an array?

Back

Rows go across.

Tags

CCSS.2.OA.C.4

Front

What is the direction of columns in an array?

Back

Columns go down.

Tags

CCSS.3.OA.A.1

Front

If Sadie cuts her brownies into 3 rows and 5 columns, how many brownies does she have?

Back

15 brownies (3 rows x 5 columns = 15).

Tags

CCSS.3.OA.A.3

Front

What is a number model for an array with 4 rows of 2?

Back

2 + 2 + 2 + 2 = 8.

Tags

CCSS.2.OA.C.4

Front

What is the formula to find the area of a rectangle represented by an array?

Back

Area = length x width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How can arrays help in solving multiplication problems?

Back

Arrays visually represent multiplication as groups of equal size, making it easier to understand and calculate.

Tags

CCSS.4.NBT.B.5

Front

What is the relationship between arrays and multiplication?

Back

Arrays can be used to represent multiplication problems, where the number of rows represents one factor and the number of columns represents the other.

Tags

CCSS.3.OA.A.1