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Let's start to see how we can use numbers
and also operations on numbers with Python.

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So this will help us when
we start to work with variables.

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So as you have seen,
if I just type 2, okay,

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2 is evaluated here
to 2, and it's printed.

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So you can see the number 2.

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So you can use round
numbers in Python, okay, 2, 4.

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You can also use negative
number, minus 3, etc.

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You can also make
computations, for example, 4

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plus 5, okay, we can
add a space for clarity.

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And you can see 4 plus 5 is
evaluated to 9, okay, you can

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also do 7 minus 5, like
this, is evaluated to 2, okay.

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Multiplication is also
working and division.

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6 divided by 2 is equal to 3.

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As you can see here, we have 3.0,
okay, we can also use float numbers.

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So let's say 3.14, okay, you can see 3.14.

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So if I just write 2, I get 2,
like this, as a round number.

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If I write 2.0, okay, I get
2.0 as a float number.

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And you can also use
any kind of computation

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on float number,
let's say 2.5 plus 3.4,

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which is equal to 5.9,
okay, you can combine

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operations, let's say
4 plus 5, multiply by 2,

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and you can see this is
14, and now I can also

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add parentheses to change the
order, okay, multiply by 2, 18, okay.

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In this case here, the
multiplication has the

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priority, so it will compute
10, okay, and add 4.

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In this case, because we have parentheses,
then the addition has the priority,

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so it will compute 9
and then multiply by 2.

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So well, if you know basic
math operations, you can

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see that working with
numbers is not difficult at all.