Ask, convert, print

Computing · Programming · ages 14-15

Name ______________________ Date ____________

What is the value of int('34') + 56?
- 90
- '3456'
- An error pops up
What does input() hand your program?
- A whole number
- Text the user typed
- A decimal number
print() shows a value on the screen.
Circle one: True False
What is the value of '50' * 3?
- 150
- An error pops up
- '505050'
A shop program reads quantity 3 and price 5.0, then prints quantity times price. What prints?
- 15
- 15.0
- '35'
Why does 8 * 0.25 print as 2.0 and not 2?
- A whole number times a decimal gives a decimal
- The computer rounds every answer up
- print() adds a point to whole numbers
A program runs n = int(input()). The user types 8. It prints n times 1.5. What prints?
Answer: ______________
A program asks for two numbers and prints their sum, but 4 and 7 print as 47. What is the fix?
- Ask for the numbers twice
- Swap print() for input()
- Convert both inputs with int() before adding

Answer key

For grown-ups. Fold this page away before handing over the rest.

90 · int('34') becomes the number 34, and 34 + 56 is 90.
Text the user typed · input() always returns text, even when the user types digits.
True · print() outputs values so the user can see them.
'505050' · A string times a whole number repeats the text three times.
15.0 · A whole number times a decimal gives a decimal, printed with a point.
A whole number times a decimal gives a decimal · Mixing a whole number with a decimal always produces a decimal.
12 · The text becomes the number 8, and 8 times 1.5 is 12.
Convert both inputs with int() before adding · The inputs were added as text. Converting them first gives 11.