Arrays and Repeated Addition

Front

What is an array?

Back

An array is a way to organize items in rows and columns.

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times.

Front

How do you write a repeated addition sentence for 4 rows of 3?

Back

3 + 3 + 3 + 3 = 12

Front

What is the total number of items in an array with 2 rows and 5 columns?

Back

2 x 5 = 10

Front

What is the repeated addition sentence for 7 rows of 1?

Back

1 + 1 + 1 + 1 + 1 + 1 + 1 = 7

Front

What direction do columns go?

Back

Up and down.

Front

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

Back

2 + 2 + 2 + 2 = 8

Front

How do you find the total number of items in an array with 3 rows and 4 columns?

Back

Multiply the number of rows by the number of columns: 3 x 4 = 12.

Front

What is the repeated addition sentence for 6 rows of 5?

Back

5 + 5 + 5 + 5 + 5 + 5 = 30

Front

What is the repeated addition sentence for 2 rows of 6?

Back

6 + 6 = 12