Introduction:
Equation:
First, find the equation of an array and add them row-wise or column-wise.
Example:
Write the equation for the given array.
![2 rows and 3 columns](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/2-rows-and-3-columns.png)
Solution:
Here, there are 2 rows and 3 columns.
So, the row-wise equation of the image is 3 + 3 = 6.
There are 6 pumpkins present in the image.
Drawing:
Draw the image of the array and solve the problem.
Example:
Rachel ate 3 slices of pizza each day. Write how many slices of pizza she ate at the end of 3rd day. Draw the array and find the answer.
Solution:
![3 slices of pizza](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/3-slices-of-pizza-1024x355.png)
She ate 3 slices of pizza on day 1.
On the 2nd day, she ate 3 slices of pizza.
On the 3rd day, she ate 3 slices of pizza.
So, at the end of the 3rd day, she ate 3 + 3 + 3 = 9 slices of pizza.
Therefore, Rachel ate 9 slices of pizza in total.
Example:
Hal arranged the leaves into 3 rows and 3 columns. How many leaves does Hal have in all?
![3 rows and 3 columns](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/3-rows-and-3-columns.png)
Solution:
Here, there are 3 rows and 3 columns.
So, the equation of the image is 3 + 3 + 3 = 9.
There are 9 leaves present in the image.
Example:
Mindy draws 5 rows of stars in her notebook. In each row, she placed 5 columns of stars. So, how many stars does she draw?
![5 columns of stars](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/5-columns-of-stars.png)
Solution:
Here, there are 5 rows and 5 columns.
So, the equation of the image is 5 + 5 + 5 + 5 + 5 = 25.
There are 25 stars present in the image.
Example:
Nill has a collection of sunglasses. He placed those in 3 rows and 3 columns. So, how many sunglasses does he have in total?
![collection of sunglasses](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/collection-of-sunglasses-1024x500.png)
Solution:
Here, there are 3 rows and 3 columns.
So, the equation of the image is 3 + 3 + 3 = 9.
There are 9 sunglasses present in the image.
Exercise
- 2 rows of apples. 3 apples in each row. How many apples?
- 2 rows of cars. 4 cars per row. How many cars?
- Write two equations which explain the array.
![Two Equations-Array](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Two-Equations-Array-1-1024x567.png)
4. Write the equation by rows for the array.
![Rows for the Array](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Rows-for-the-Array-548x1024.png)
5. Write the equation by columns for the array.
![columns for the array](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Columns-for-the-array-2-508x1024.png)
6. Jolene puts cakes out on the table. She puts 3 rows of cakes with 4 in each row on the table. How many cakes does she have in all?
7. Write two equations that explains the array.
![Two Equations-Array](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Two-Equations-Array-2.png)
8. Write the equation by columns for the array.
![columns for the array](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/Columns-for-the-array-3-1024x883.png)
9. Write two equations which explains the array.
![The array](https://www.turito.com/learn-internal/wp-content/uploads/2023/07/The-array-1-1024x436.png)
10. Larry puts cupcakes on a plate. He puts 2 rows of cupcakes with 5 in each row. How many cupcakes does Larry have in all?
![Model with Maths](/_next/image?url=https%3A%2F%2Fwww.turito.com%2Flearn-internal%2Fwp-content%2Fuploads%2F2023%2F07%2Fmodel-with-maths-2.png&w=1920&q=50)
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