Arrays and Repeated Addition

Front

What is an array?

Back

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

Front

What direction do rows go?

Back

Rows go across.

Front

What direction do columns go?

Back

Columns go up and down.

Front

What is repeated addition?

Back

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

Front

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

Back

Multiply the number of rows by the number of columns.

Front

If there are 3 rows of 4 apples, how many apples are there in total?

Back

12 apples (3 x 4 = 12).

Front

What is the repeated addition sentence for 3 rows of 4?

Back

4 + 4 + 4 = 12.

Front

What is the repeated addition sentence for 2 rows of 5?

Back

5 + 5 = 10.

Front

If I have 5 bunches of flowers with 3 flowers in each bunch, how many flowers do I have in all?

Back

15 flowers (5 x 3 = 15).

Front

What is the repeated addition sentence for 5 bunches of 3?

Back

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