Elif ladder execution in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a number is positive.

Python

if num [1] 0:
    print("Positive number")

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

A==

B<

C>

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' will check for negative numbers.

Using '==' checks only if number equals zero, not positive.

The condition num > 0 checks if the number is positive.

2fill in blank

medium

Complete the code to print "Zero" when num is zero.

Python

if num > 0:
    print("Positive")
elif num [1] 0:
    print("Zero")

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

A>

B==

C!=

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' will check for any number except zero.

Using '<' or '>' will not correctly identify zero.

The condition num == 0 checks if the number is exactly zero.

3fill in blank

hard

Fix the error in the elif condition to check if num is negative.

Python

if num > 0:
    print("Positive")
elif num [1] 0:
    print("Negative")

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

A<

B==

C>

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' checks only for zero, not negative numbers.

Using '!=' checks for any number except zero, not specifically negative.

The condition num < 0 correctly checks if the number is negative.

4fill in blank

hard

Fill both blanks to complete the elif ladder that prints the sign of num.

Python

if num [1] 0:
    print("Positive")
elif num [2] 0:
    print("Negative")

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

A>

B<

C==

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the operators will give wrong results.

Using '==' in these places will not check for positive or negative.

The first condition checks if num > 0 for positive numbers.
The second checks if num < 0 for negative numbers.

5fill in blank

hard

Fill all three blanks to complete the elif ladder that prints the sign or zero.

Python

if num [1] 0:
    print("Positive")
elif num [2] 0:
    print("Negative")
else:
    print("[3]")

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

A>

B<

CZero

DPositive

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong operators in conditions.

Printing wrong string in else block.

The code checks if num > 0 for positive, num < 0 for negative, and prints "Zero" otherwise.