Equal Groups and Arrays

Front

What is an array?

Back

An array is a way to organize objects in rows and columns to show equal groups.

Tags

CCSS.3.OA.A.1

Front

What does 'equal groups' mean?

Back

Equal groups are groups that have the same number of items in each.

Tags

CCSS.2.OA.C.3

Front

How do you write a multiplication sentence for an array?

Back

You can write a multiplication sentence by multiplying the number of rows by the number of items in each row.

Tags

CCSS.3.OA.A.1

Front

What is the multiplication sentence for 4 rows of 6?

Back

4 x 6 = 24.

Tags

CCSS.3.OA.A.1

Front

What is repeated addition?

Back

Repeated addition is adding the same number several times, which is the same as multiplication.

Tags

CCSS.3.OA.A.1

Front

What is the repeated addition for 3 groups of 5?

Back

5 + 5 + 5 = 15.

Tags

CCSS.2.OA.C.4

Front

How can you find the total in an array?

Back

Multiply the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What does '5 groups of 3' mean?

Back

It means you have 5 groups, and each group has 3 items.

Tags

CCSS.3.OA.A.1

Front

What is the equation for 2 rows of 4?

Back

2 x 4 = 8.

Tags

CCSS.3.OA.A.1

Front

If you have 6 + 6 + 6, what is the multiplication sentence?

Back

3 x 6 = 18.

Tags

CCSS.3.OA.A.1