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 repeated addition be used to represent an array?

Back

Repeated addition is the process of adding the same number multiple times, which can represent the total number of items in an array.

Tags

CCSS.2.OA.C.4

Front

What is the repeated addition sentence for an array with 3 rows of 2?

Back

2 + 2 + 2 = 6.

Tags

CCSS.2.OA.C.4

Front

What direction do rows go in an array?

Back

Rows go from left to right.

Tags

CCSS.2.OA.C.4

Front

What is the difference between rows and columns in an array?

Back

Rows are horizontal lines of items, while columns are vertical lines of items.

Tags

CCSS.2.OA.C.4

Front

How do you determine 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 is the repeated addition sentence for an array with 4 rows of 4?

Back

4 + 4 + 4 + 4 = 16.

Tags

CCSS.2.OA.C.4

Front

If an array has 5 columns and 3 rows, how many total items are there?

Back

There are 15 total items (5 columns x 3 rows = 15).

Tags

CCSS.2.OA.C.4

Front

What is the repeated addition sentence for 3 rows of 5?

Back

5 + 5 + 5 = 15.

Tags

CCSS.2.OA.C.4

Front

How can you visualize an array?

Back

You can visualize an array by drawing dots or using objects arranged in rows and columns.

Tags

CCSS.3.OA.A.1