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## Definition

The arrangement of objects into rows and columns which forms a rectangle is called a rectangular array. Addition can be easily learned through the use of rectangular array.

## Summary

Addition (+) is finding the total of two or more number when combined together. The answer to the equation of addition is called “sum”.

*Examples: 2 + 2 = 4*

A rectangular array can be composed of different kinds of objects as long as it still forms a rectangle. The rectangular array should have equal number of objects in its rows and columns.

There are two ways to use the array for Addition.

- Count the number of objects in each row.
- Add the total number of objects in each row.

*Example:* *3 + 3 = 6*

- Count the number of objects in each column.
- Add the total number of objects in each column.

*Example:* *2 + 2 + 2 = 6*

## Expressing the Sum of Numbers Using Rectangular Array Worksheets

This is a fantastic bundle which includes everything you need to know about Expressing the Sum of Numbers Using Rectangular Array across 21 in-depth pages. These are ready-to-use Common core aligned Kindergarten Math worksheets.

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.

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