Arrays(Repeated Addition) Test (Friday 13 Dec.24)

Front

What is an array?

Back

An array is a way to organize objects or numbers in rows and columns.

Tags

CCSS.3.OA.A.1

Front

What do we call the horizontal lines in an array?

Back

Rows are the horizontal lines in an array.

Tags

CCSS.2.OA.C.4

Front

What do we call the vertical lines in an array?

Back

Columns are the vertical lines in an array.

Tags

CCSS.3.OA.A.1

Front

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

Back

You can find the total by multiplying the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

If there are 3 rows and 4 columns, how many items are there in total?

Back

There are 12 items in total (3 x 4 = 12).

Tags

CCSS.2.OA.C.3

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times, like 4 + 4 + 4 = 12.

Tags

CCSS.2.OA.C.4

Front

How can arrays help with repeated addition?

Back

Arrays show how many groups of the same size there are, making it easier to add them up.

Tags

CCSS.2.OA.C.4

Front

What is the first step to solve an array problem?

Back

Identify the number of rows and columns.

Tags

CCSS.3.OA.A.1

Front

If an array has 5 rows and each row has 2 items, how can we write this as repeated addition?

Back

2 + 2 + 2 + 2 + 2 = 10.

Tags

CCSS.2.OA.C.4

Front

What is the relationship between arrays and multiplication?

Back

Arrays can be used to represent multiplication, where rows represent one factor and columns represent another.

Tags

CCSS.3.OA.A.1