3.OA.1 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.

Front

How do you calculate the area of an array?

Back

The area of an array is calculated by multiplying the number of rows by the number of columns.

Front

What multiplication sentence does a 5x5 array represent?

Back

5 x 5 = 25.

Front

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

Back

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

Front

What is the relationship between multiplication and division in the context of arrays?

Back

Multiplication can be used to find the total number of items in an array, while division can be used to determine how many rows or columns are needed.

Front

How can you represent the equation 12 ÷ 4 = 3 using an array?

Back

You can represent it with an array that has 12 items arranged in 4 equal rows, showing that there are 3 items in each row.

Front

What does the equation 3 x 4 = 12 represent in terms of an array?

Back

It represents an array with 3 rows and 4 columns, totaling 12 items.

Front

What is the area of an array with dimensions 6 rows and 2 columns?

Back

The area is 6 x 2 = 12 square units.

Front

How can you visualize the multiplication sentence 4 x 3 using an array?

Back

You can visualize it as 4 rows of 3 items each.

Front

What is the significance of the commutative property in multiplication with arrays?

Back

The commutative property states that the order of multiplication does not affect the product, so 3 x 4 is the same as 4 x 3.