Loops (repeating actions) in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print numbers from 1 to 5 using a loop.

Intro to Computing

for i in range(1, [1]):
    print(i)

Drag options to blanks, or click blank then click option'

A6

B5

C10

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Using 5 as the end number, which stops at 4.

Using 10, which prints more numbers than needed.

The range function stops before the end number, so to print 1 to 5, we use range(1, 6).

2fill in blank

medium

Complete the code to sum numbers from 1 to 4 using a loop.

Intro to Computing

total = 0
for num in range(1, [1]):
    total += num
print(total)

Drag options to blanks, or click blank then click option'

A4

B5

C6

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using 4 as the end number, which excludes 4 from the sum.

Using 6, which sums extra numbers.

To sum numbers 1 to 4, the loop must run from 1 to 5 (exclusive), so range(1, 5).

3fill in blank

hard

Fix the error in the loop to print each character in the word.

Intro to Computing

word = 'hello'
for [1] in word:
    print(letter)

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Aletter

Bword

Cchar

Di

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name than in the print statement.

Using the string variable name as the loop variable.

The loop variable should be letter to match the print statement.

4fill in blank

hard

Fill both blanks to create a dictionary of squares for numbers 1 to 5.

Intro to Computing

squares = {x: x[1]2 for x in range(1, [2])}

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A**

B+

C6

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using + instead of exponentiation.

Using 5 as the range end, which excludes 5.

Use ** for exponentiation and 6 as the range end to include 5.

5fill in blank

hard

Fill all three blanks to create a dictionary of uppercase words with their lengths, filtering words longer than 3 letters.

Intro to Computing

result = [1]: [2] for word in words if len(word) [3] 3}

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Aword.upper()

Blen(word)

C>

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using word instead of uppercase for keys.

Using < or == instead of > in the condition.

The key is the uppercase word, the value is its length, and the condition filters words longer than 3 letters.