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Coding · Ages 10+ · Set C
Variables in Python
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C
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Goal: 15 min
Score/ 12
Remember: A variable is a named box that holds a value. The value can change.

Questions

1
A box called coins holds three. Which line takes one coin out?
🔤coins == 4🔤coins = coins - 1🔤coin = coins + 1
2
Which idea about variables is not true?
📦a variable is a named box that holds a value🔢a variable can only hold a number⬅️one equals sign puts a value in a variable
3
Which idea about variables is not true?
📦a variable is a named box that holds a value⬅️one equals sign puts a value in a variable🔒a variable keeps its first value forever
4
Which idea about variables is true?
⬅️one equals sign puts a value in a variable↔️a variable name can have spaces in it⚖️one equals sign checks if two things are equal
5
A box called coins holds three. Which line leaves the box holding three?
🔤coins = coins - 1🔤1 + coins = coins🔤coin = coins + 1
6
A box called coins holds three. Which line adds one coin?
🔤coins == 4🔤coins = coins + 1🔤coins = 3 - 1
7
A box called coins holds three. Which line takes one coin out?
🔤1 + coins = coins🔤coins = 3 - 1🔤coins == 4
8
A box called coins holds three. Which line has a bug?
🔤1 + coins = coins🔤coins = 3 - 1🔤coins == 4
9
A box called coins holds three. Which line has a bug?
🔤coins = 3 - 1🔤3 = coins🔤coins + 1
10
Which idea about variables is true?
🔢a variable can only hold a number🏷️the name on a variable is how Python finds it↔️a variable name can have spaces in it
11
Which idea about variables is true?
🔒a variable keeps its first value forever⚖️one equals sign checks if two things are equal📦a variable is a named box that holds a value
12
A box called coins holds three. Which line leaves the box holding three?
🔤coins = coins - 1🔤1 + coins = coins🔤coins + 1
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Answer key · Set C
Variables in Python
1coins = coins - 1
2a variable can only hold a number
3a variable keeps its first value forever
4one equals sign puts a value in a variable
5coin = coins + 1
6coins = coins + 1
7coins = 3 - 1
81 + coins = coins
93 = coins
10the name on a variable is how Python finds it
11a variable is a named box that holds a value
12coins + 1
Mark each answer, count the right ones and write the score on the sheet.