Repeated Addition - Arrays

Front

What is repeated addition?

Back

Repeated addition is the process of adding the same number multiple times, which is a way to represent multiplication.

Front

How can arrays be used to represent repeated addition?

Back

Arrays can visually represent repeated addition by organizing objects in rows and columns, where each row represents a group of the same size.

Front

What is the relationship between rows and columns in an array?

Back

In an array, rows run horizontally and columns run vertically. The number of rows indicates how many groups there are, while the number of columns indicates how many items are in each group.

Front

If an array has 4 rows and 2 columns, how many total items are there?

Back

There are 8 total items in the array (4 rows x 2 columns = 8 items).

Front

What does it mean to take away a row from an array?

Back

Taking away a row from an array means removing one complete horizontal group of items, which decreases the total number of items in the array.

Front

How do you determine the number of columns in an array?

Back

The number of columns in an array is determined by counting how many vertical groups of items are present.

Front

What is an example of a repeated addition sentence for an array with 3 rows of 4?

Back

An example of a repeated addition sentence is 4 + 4 + 4, which can also be expressed as 3 x 4.

Front

What is the significance of the term 'pairs' in the context of arrays?

Back

The term 'pairs' refers to groups of two items, which can be represented in an array format to visualize the total number of pairs.

Front

How can you find the total number of items in an array if you know the number of rows and columns?

Back

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

Front

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

Back

The repeated addition sentence is 2 + 2 + 2 + 2 + 2, which equals 10.