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 do you determine the number of rows and columns in an array?

Back

The number of rows is the count of horizontal lines, while the number of columns is the count of vertical lines.

Tags

CCSS.3.OA.A.1

Front

What multiplication sentence does a 4x4 array represent?

Back

4 x 4 = 16.

Tags

CCSS.3.OA.A.1

Front

What multiplication sentence does a 5x7 array represent?

Back

5 x 7 = 35.

Tags

CCSS.3.OA.A.1

Front

What is the relationship between arrays and multiplication?

Back

Arrays visually represent multiplication by showing how many groups of a certain size are present.

Tags

CCSS.4.NBT.B.5

Front

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

Back

Multiply the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What does it mean when an array is described as 'columns'?

Back

Columns refer to the vertical arrangements in an array that go up and down.

Tags

CCSS.3.OA.A.1

Front

What does it mean when an array is described as 'rows'?

Back

Rows refer to the horizontal arrangements in an array that go from left to right.

Tags

CCSS.2.OA.C.4

Front

If an array has 4 rows and 6 columns, what is the total number of items?

Back

4 x 6 = 24.

Tags

CCSS.3.OA.A.1

Front

If an array has 4 rows and 8 columns, what is the total number of items?

Back

4 x 8 = 32.

Tags

CCSS.3.OA.A.1