Nested conditional execution in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a number is positive.

Python

num = 5
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 '>' which checks for negative numbers.

Using '==' which only checks if the number is exactly zero.

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

2fill in blank

medium

Complete the code to check if a number is positive and even.

Python

num = 4
if num > 0 and num [1] 2 == 0:
    print("Positive even number")

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

A%

B//

C**

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using '//' which does floor division instead of checking remainder.

Using '+' or '**' which are not related to divisibility.

The modulo operator % checks if the number is divisible by 2 with no remainder, meaning it is even.

3fill in blank

hard

Fix the error in the nested if statement to check if a number is positive and less than 10.

Python

num = 7
if num > 0:
    if num [1] 10:
        print("Number is positive and less than 10")

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

A>

B==

C!=

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' which checks if number is greater than 10.

Using '==' which checks equality, not less than.

The inner condition should check if num < 10 to confirm it is less than 10.

4fill in blank

hard

Fill both blanks to print if a number is positive and even.

Python

num = 8
if num [1] 0:
    if num [2] 2 == 0:
        print("Positive even number")

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

A>

B<

C%

D//

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' for positive check which is incorrect.

Using '//' instead of '%' for even check.

The first blank checks if the number is greater than zero. The second blank uses modulo '%' to check evenness.

5fill in blank

hard

Fill all three blanks to print if a number is positive, even, and less than 20.

Python

num = 16
if num [1] 0:
    if num [2] 2 == 0:
        if num [3] 20:
            print("Positive even number less than 20")

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

A>

B%

C<

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '<' for the last condition.

Using '//' instead of '%' for even check.

The first blank checks if number is greater than zero, the second uses modulo '%' to check evenness, and the third checks if number is less than 20.