First steps · Compendia

Part 1: Text, numbers and print

Question 1

Which of these writes out Total: 750?

A.print(f"Total: {3 * 250}")B.print("Total: {3 * 250}")C.print("Total: " + 3 * 250)D.print(f"Total: 3 * 250")

Question 2

What does print("2 + 2") write out?

A.2 + 2B."2 + 2"C.Nothing, because a sum cannot go inside quotation marksD.4

Question 3

What does print("3" + "4") write out?

A.It stops with a TypeErrorB.34C.3 4D.7

Part 2: When it goes wrong

Question 4

What does print("Use # for comments") write out?

A.It stops with a SyntaxErrorB.Nothing, because the hash turns the rest of the line into a noteC.Use # for commentsD.Use

Question 5

print("Age:" + 30) stops the program. Which error is it, and why?

A.ValueError, because 30 cannot be turned into textB.SyntaxError, because the brackets are wrongC.TypeError, because + will join text to text but not text to a numberD.NameError, because 30 has not been defined

Question 6

A problem asks for a function called double. You write def double(n): and then, indented under it, print(n * 2). The right numbers appear on the screen and every test fails. Why?

A.n * 2 should be n + nB.The parameter has to be called numberC.The marker only looks at what the function returns, and this one returns NoneD.Printing is too slow for the marker to catch