Sequence and Selections

place the answers correctly in order to ask the age of a user:

​​ (a)   = ​ (b)   ​ ​ ​ (c)   ​ ​ ​ (d)   ​

• int (
• (
• input (
• "What is your age"
• ))
• age

What is the correct way to print hello world

• Print("hello world")

• print = "hello world"

• print(hello world)

• print("hello world")

Answer explanation

When you want to print hello world,

1) always make sure that the 'p' in print is always lower case

2) always make sure there are brackets after print

3) always make sure there is no space between print and the brackets

4) always make sure there are speech marks inside the brackets, UNLESS, you want to output the value in a variable

correct answer:

print("hello world")

Reorder the following

• kiwi

• 27

• =

Which of the following TWO are NOT correct variable names

• player_life

• _marvel

• #playerone

• 1_life

Answer explanation

A variable can have:

1) Letter (0-9)

2) Number (A-z)

3) Underscore ( _ )

Rules:

1) A variable name cannot start with a Number

2) No special characters are allowed EXCEPT for underscore ( _ )

3) Spaces are not allowed when naming a variable

What does the term sequencing mean?

• To code something in the correct order

• To code something in any order, as long as it makes sense to me

• To iterate something 2 times

• To find a result between 2 conditions

Answer explanation

Sequencing means to ensure that everything is in a correct and logical order

Lets look at a recipe, If I was to change the recipe order, there may be a change in taste, colour and/or smell.

Similarly, a computer needs to be told what to do in order otherwise it will get confused and crash!

Order the code correctly:

1. 1. ​ ​ (a)  

2. 2. ​ (b)  

3. 3. ​ (c)  

4. 4. ​ (d)  

• num1 = int(input("gimme a number")
• num2 = int(input("gimme a number")
• ans = num1 + num2
• print(ans)
• num1 = input(int(gimme a number))
• num2 = input(int("gimme a number))
• Print("Ans")
• Print(ans)