Multiplication & Division using Arrays and Equal Groups

Front

What is multiplication?

Back

Multiplication is a way to add the same number several times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is division?

Back

Division is splitting a number into equal parts. For example, 12 ÷ 4 means splitting 12 into 4 equal groups, which gives 3.

Front

What is an array in math?

Back

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

Front

How do you find the total in an array?

Back

To find the total in an array, multiply the number of rows by the number of columns. For example, 3 rows of 4 gives 3 x 4 = 12.

Front

What does 'equal groups' mean?

Back

Equal groups means that each group has the same number of items. For example, if you have 12 apples and 4 equal groups, each group has 3 apples.

Front

What is the multiplication equation for 4 groups of 5?

Back

The multiplication equation is 4 x 5 = 20.

Front

What is the division equation for 20 divided into 4 equal groups?

Back

The division equation is 20 ÷ 4 = 5.

Front

How can you represent 2 x 3 using an array?

Back

You can represent 2 x 3 with 2 rows and 3 columns of objects.

Front

What is the total number of items in 5 groups of 2?

Back

The total number of items is 5 x 2 = 10.

Front

If you have 18 items and want to divide them into 6 equal groups, how many items are in each group?

Back

Each group will have 18 ÷ 6 = 3 items.