# 1. Introduction

Summing all items in a dictionary is a task that can be useful for statistical analysis, inventory calculations, or aggregating any numerical data that is stored as dictionary values.

The sum of all items in a dictionary refers to the total of the values associated with each key. In Python, this typically means iterating over the dictionary and adding up the values.

# 2. Program Steps

1. Initialize a dictionary with numerical values.

2. Iterate over the dictionary's values and calculate their sum.

3. Output the sum of the values.

# 3. Code Program

``````# Initialize the dictionary
my_dict = {'a': 100, 'b': 200, 'c': 300}

# Initialize a variable to hold the sum of the items
sum_of_items = 0

# Iterate over the dictionary's values and add them to the sum_of_items
for value in my_dict.values():
sum_of_items += value

# Print the sum of the items
print(f"The sum of all items in the dictionary is: {sum_of_items}")
``````

### Output:

```The sum of all items in the dictionary is: 600
```

### Explanation:

1. my_dict is a dictionary containing three key-value pairs where the values are numerical.

2. sum_of_items is initialized to 0 and will accumulate the sum of the dictionary's values.

3. A for loop iterates over each value in the dictionary by calling my_dict.values().

4. Each value is added to sum_of_items within the loop.

5. After the loop completes, sum_of_items contains the sum of all values in my_dict.

6. The print statement then outputs this sum, showing that the total of all items in the given dictionary is 600.