Python Basic

Question 1

Exponent Operator and example

Answer 1

**

2**3 = 8

Question 2

Modulus/remainder operator and example

Answer 2

%

7%5 = 2

Question 3

Integer division/floored quotient operator and example

Answer 3

//
12//5 = 2

Question 4

Division operator and example

Answer 4

/

12/5=2.4

Question 5

Multiplication operator and example

Answer 5

*

2*5=10

Question 6

Subtraction operator and example

Answer 6

-

5-2=3

Question 7

Addition operator and example

Answer 7

+

5+2=7

Question 8

What is the order of operations (also called precedence) of Python math operators?

Answer 8

**
%
//
/
*
-
\+

Question 9

What are expressions?

Answer 9

values combined with operators, and they always evaluate down to a single value

Question 10

What are the most common data type in python?

Answer 10

integers = -2, 5, 6
Floating-point numbers(float) = 2.44
strings = a, b ,c

Question 11

What does it mean?

SyntaxError: EOL while scanning string literal

Answer 11

you probably forgot the final single quote character at the end of the string
EOL stands for end of line

Question 12

What is the string concatenation operator?

Answer 12

+
‘Bob’ + ‘ ‘ + ‘ Dylan’
Bob Dylan

Question 13

What does it mean?

TypeError: can only concatenate str (not “int”) to str

Answer 13

‘Bob’ + 25

we cannot use + to concatenate strings and integers

Question 14

What is string replication operator?

Answer 14

‘Bob’*5 (this should be a value, it cannot be a string)

‘BobBobBobBobBob’

Question 15

What is an assignment statement?

Answer 15

Spam = 25

variable name, an equal sign (called the assignment operator), and the value to be stored

Question 16

How to change the value of a variable?

Answer 16

by assigning a new value to it

Question 17

What are the variable names rules?

Answer 17

It can be only one word with no spaces.
It can use only letters, numbers, and the underscore (_) character.
It can’t begin with a number.

Question 18

different way of naming a value?

Answer 18

camelCase
PascalCase
snake_case

Question 19

How to ask for user’s input?

Answer 19

myAge = input()

Question 20

How to write a comment in python?

Answer 20

or

””” “””

Question 21

How to use print function to put a blank line on the screen?

Answer 21

just call print() with nothing in between the parentheses.

Question 22

what value type does input() function return?

Answer 22

only string

Question 23

How to convert value type in python?

Answer 23

str(42)
int(‘42) , int(age)
float(‘42.5’)

Question 24

function to round a number?

Answer 24

round(2.5555, 2)

2.55