Arrays (Multiplication and Division)

Front

What is an array?

Back

An array is a way to organize objects or numbers in rows and columns. For example, 3 rows of 4 apples can be shown as an array.

Front

What does multiplication mean in terms of arrays?

Back

Multiplication is finding the total number of items in an array. For example, in a 3 by 4 array, you multiply 3 (rows) by 4 (columns) to get 12.

Front

What does division mean in terms of arrays?

Back

Division is splitting a total into equal parts. For example, if you have 12 apples and want to divide them into groups of 4, you can form 3 groups.

Front

What is the multiplication sentence for a 3 by 5 array?

Back

3 x 5 = 15

Front

What is the division sentence for a 15 item array divided into groups of 3?

Back

15 ÷ 3 = 5

Front

How can you represent 4 x 2 using an array?

Back

You can represent it as 4 rows of 2 items each, totaling 8 items.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If 4 x 3 = 12, then 12 ÷ 4 = 3.

Front

What is a multiplication fact?

Back

A multiplication fact is a basic multiplication equation, like 2 x 3 = 6.

Front

What is a division fact?

Back

A division fact is a basic division equation, like 12 ÷ 4 = 3.

Front

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

Back

Multiply the number of rows by the number of columns.