Why software gives hardware purpose in Intro to Computing - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print a message using software instructions.

Intro to Computing

print([1])

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

Aprint

B"Hello, world!"

CHello, world!

Dmessage

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the text.

Using a variable name without defining it.

The print function needs a string inside quotes to display text on the screen.

2fill in blank

medium

Complete the code to assign a number to a variable.

Intro to Computing

speed = [1]

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

A100

B"fast"

Cspeed

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Putting numbers inside quotes, making them strings.

Using a function name instead of a value.

Assigning a number to a variable means writing the number without quotes.

3fill in blank

hard

Fix the error in the code to make the computer add two numbers.

Intro to Computing

result = 5 [1] 3

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

A-

B*

C/

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using - instead of + causes subtraction.

Using * or / changes the operation.

The plus sign (+) adds two numbers together.

4fill in blank

hard

Fill both blanks to create a loop that counts from 1 to 5.

Intro to Computing

for [1] in range([2]):
    print([1] + 1)

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

Ai

B5

Cx

Drange

Attempts:

3 left

💡 Hint

Common Mistakes

Using range instead of a variable name.

Using a variable name for range().

The variable i is commonly used in loops. range(5) counts from 0 to 4, so adding 1 prints 1 to 5.

5fill in blank

hard

Fill all three blanks to create a dictionary of squares for numbers greater than 2.

Intro to Computing

squares = { [1]: [2]**2 for [3] in range(1, 6) if [3] > 2 }

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

Ax

Dy

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names causing errors.

Not using dictionary braces {}.

We use the same variable x for keys and values in the dictionary comprehension.