Equal Groups and Arrays

Front

What is an equal group?

Back

An equal group is a collection of items that are the same in number. For example, if you have 3 groups of 4 apples, each group has 4 apples.

Front

What is an array in math?

Back

An array is a way to arrange objects in rows and columns. For example, 2 rows of 3 can be shown as: ● ● ● ● ● ●

Front

How do you write a multiplication sentence for equal groups?

Back

You can write a multiplication sentence by multiplying the number of groups by the number of items in each group. For example, 4 groups of 2 is written as 4 x 2.

Front

What does 2x4 mean?

Back

2x4 means there are 2 groups of 4 items each. It can also be shown as an array with 2 rows and 4 columns.

Front

How can you represent 3 rows of 4?

Back

You can represent 3 rows of 4 as an array: ● ● ● ● ● ● ● ● ● ● ● ●

Front

What is the multiplication sentence for 5 groups of 3?

Back

The multiplication sentence for 5 groups of 3 is 5 x 3.

Front

What does 4 rows of 3 look like in an array?

Back

4 rows of 3 can be shown as: ● ● ● ● ● ● ● ● ● ● ● ●

Front

How do you find the total in equal groups?

Back

To find the total in equal groups, multiply the number of groups by the number of items in each group. For example, 6 groups of 5 equals 30.

Front

What is the difference between rows and columns?

Back

Rows go across (horizontally) and columns go up and down (vertically). In an array, rows are the horizontal lines and columns are the vertical lines.

Front

What does 2 rows of 4 mean?

Back

2 rows of 4 means there are 2 rows with 4 items in each row, which can be written as 2 x 4.