py4kidsSearch

Python, Concept by Concept › Checkpoint 01: Foundations

Questions: Checkpoint 01: Foundations

Complete all seven exercises. The balance is two output-and-variables exercises, two numbers-and-arithmetic exercises, two decisions exercises, and one traceback-reading exercise. Follow each specification and produce the exact output shown from the fixed given values.

Each question ends with a Real version note showing how the program can read its values with input().

Question 1: Name Card

A card stores a name and hometown separately, then places both values in one sentence.

Specification: Given name and hometown, use one f-string to print exactly <name> is from <hometown>.

Worked sample — given values:

name = "Maya"
hometown = "Oakland"

Expected output:

Maya is from Oakland.

Real program

The real program reads a name and a hometown on separate lines with input().

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

Also check yourself

The automatic check cannot see these, so tick each one when your work does it.

For parents and teachers: report a problem

Question 2: Labeled Item

A shelf label joins fixed text with a saved item name.

Specification: Given item, use string concatenation with + to print exactly Item: <item>. Do not use an f-string.

Worked sample — given values:

item = "markers"

Expected output:

Item: markers

Real program

The real program reads an item name on one line with input().

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

Also check yourself

The automatic check cannot see these, so tick each one when your work does it.

For parents and teachers: report a problem

Question 3: Hours and Minutes

A duration needs complete hours and leftover minutes.

Specification: Given the non-negative integer total_minutes, use // and % to print exactly <hours> hours <minutes> minutes.

Worked sample — given values:

total_minutes = 155

Expected output:

2 hours 35 minutes

Real program

The real program reads a total number of minutes on one line with input().

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

Also check yourself

The automatic check cannot see these, so tick each one when your work does it.

For parents and teachers: report a problem

Question 4: Converted Average

Two score values arrived as text. They must become integers before regular division finds their average.

Specification: Given first_text and second_text, convert each with int(), add the numbers, divide by 2 with /, and print exactly Average: <average>. Show Python's exact float output.

Worked sample — given values:

first_text = "8"
second_text = "12"

Expected output:

Average: 10.0

Real program

The real program reads two score texts with input(), converts them with int, and prints the average.

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

Also check yourself

The automatic check cannot see these, so tick each one when your work does it.

For parents and teachers: report a problem

Question 5: Ordered Score Ladder

A score receives the first level whose threshold it reaches. The checks overlap, so their order determines the label.

Specification: Given score, use exactly one if/elif/elif/else ladder. Check score >= 90 for Level A first, score >= 80 for Level B next, and score >= 70 for Level C next; otherwise print Keep practicing.

Worked sample — given values:

score = 94

Expected output:

Level A

Notice

94 also reaches the lower thresholds. The highest threshold must appear first because the first matching branch wins.

Real program

The real program reads a score on one line with input().

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

Also check yourself

The automatic check cannot see these, so tick each one when your work does it.

For parents and teachers: report a problem

Question 6: Range and Entry Test

An entry is approved for ages 10 through 13 when the person also has either a pass or an invitation.

Specification: Given age, has_pass, and has_invitation, use age >= 10 and age <= 13 for the inclusive range. Join it with the choice (has_pass or has_invitation), keeping that choice in parentheses. Print Entry approved when the full condition is true; otherwise print Entry denied.

Worked sample — given values:

age = 12
has_pass = False
has_invitation = True

Expected output:

Entry approved

Real program

The real program reads an age, a pass answer (yes/no), and an invitation answer (yes/no) on separate lines with input().

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

Also check yourself

The automatic check cannot see these, so tick each one when your work does it.

For parents and teachers: report a problem

Question 7: Read the Final Traceback Line

A program tries to join text and an integer with +:

points = 7
print("Points: " + points)

The final traceback line begins like this:

TypeError: can only concatenate str ... to str

Specification: Read the final traceback line and print only the error type.

Worked sample — given values:

The final traceback line begins with TypeError.

Expected output:

TypeError

How this is checked: Checked by comparing what your program prints with the expected output.

Answer format: one line

For parents and teachers: report a problem

Back to Checkpoint 01: Foundations