sum() function in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to calculate the sum of numbers in the list.

Python

numbers = [1, 2, 3, 4, 5]
total = [1](numbers)
print(total)

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Amin

Blen

Cmax

Dsum

Attempts:

3 left

💡 Hint

Common Mistakes

Using len() instead of sum() which returns the count, not the total.

Using max() or min() which return the largest or smallest number, not the sum.

The sum() function adds all numbers in the list and returns the total.

2fill in blank

medium

Complete the code to calculate the sum of numbers from 1 to 5 using range.

Python

total = [1](range(1, 6))
print(total)

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Amax

Bsum

Clen

Dmin

Attempts:

3 left

💡 Hint

Common Mistakes

Using len() which returns the count of numbers, not their sum.

Using max() or min() which return single values, not the total.

The sum() function can add numbers generated by range().

3fill in blank

hard

Fix the error in the code to correctly sum the list elements.

Python

values = [10, 20, 30]
total = sum[1]values
print(total)

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A{ }

B[ ]

C( )

D< >

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets which are for lists, not function calls.

Using curly braces or angle brackets which are invalid here.

The sum() function requires parentheses around its argument.

4fill in blank

hard

Fill both blanks to create a dictionary of word lengths for words longer than 3 letters.

Python

words = ['apple', 'bat', 'carrot', 'dog']
lengths = {word: [1] for word in words if len(word) [2] 3}
print(lengths)

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Alen(word)

Bword

C>

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using the word itself instead of its length.

Using the wrong comparison operator like <= which selects shorter words.

We use len(word) to get the length and filter words with length greater than 3 using >.

5fill in blank

hard

Fill all three blanks to create a dictionary with uppercase keys and values greater than 10.

Python

data = {'a': 5, 'b': 15, 'c': 20}
result = { [1]: [2] for k, v in data.items() if v [3] 10 }
print(result)

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Ak.upper()

Bv

C>

Dk

Attempts:

3 left

💡 Hint

Common Mistakes

Using original keys without uppercase.

Using wrong comparison operators like < instead of >.

Using keys instead of values in the dictionary.

The keys are converted to uppercase with k.upper(), values are v, and filtered where v > 10.