Repeated Addition with Arrays

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times. For example, 3 + 3 + 3 means adding 3 three times.

Tags

CCSS.2.OA.C.4

Front

How can we represent repeated addition with an array?

Back

An array is a set of objects arranged in rows and columns. Each row can represent one addition in repeated addition.

Tags

CCSS.2.OA.C.4

Front

What is the repeated addition sentence for 4 rows of 2?

Back

2 + 2 + 2 + 2 = 8.

Tags

CCSS.2.OA.C.4

Front

If you have 3 rows of 5, what is the repeated addition sentence?

Back

5 + 5 + 5 = 15.

Tags

CCSS.2.OA.C.4

Front

What does the array 2 rows of 4 look like?

Back

It looks like: [4, 4] This means 4 + 4 = 8.

Tags

CCSS.2.OA.C.4

Front

How do you find the total in repeated addition?

Back

You add all the numbers together. For example, 2 + 2 + 2 = 6.

Tags

CCSS.2.OA.C.4

Front

What is the repeated addition for 5 groups of 3?

Back

3 + 3 + 3 + 3 + 3 = 15.

Tags

CCSS.2.OA.C.4

Front

What is an example of a rectangular array?

Back

An example is 3 rows of 4, which can be written as 4 + 4 + 4 = 12.

Tags

CCSS.2.OA.C.4

Front

How can you check your repeated addition?

Back

You can count the total number of items in the array.

Tags

CCSS.2.OA.C.4

Front

What is the repeated addition for 6 groups of 2?

Back

2 + 2 + 2 + 2 + 2 + 2 = 12.

Tags

CCSS.2.OA.C.4