Referenced from lesson Simple Data Types

Make sure you’ve loaded the editor, clicked “Run”, and are working in the Interactions Area.


1 Try typing 42 into the Interactions Area and hitting “Enter”. What is the largest number the editor can handle?

2 Try typing 0.5. Then try typing .5. Then try clicking on the answer. Experiment with other decimals. Explain what you understand about how decimals work in this programming language.

3 What happens if you try a fraction like 1/3?

4 Try writing negative integers, fractions and decimals.


String values are always in quotes.

5 Is 42 the same as "42"? Why or why not? Write your answer below:

6 Try typing your name (in quotes!).

7 Try typing a sentence like "I’m excited to learn to code!" (in quotes!).

8 Try typing your name with the opening quote, but without the closing quote. Read the error message!

9 Now try typing your name without any quotes. Read the error message!

10 Explain what you understand about how strings work in this programming language.

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