Tutorial 4:Arithmetic Operators in Pythons

Revision

In previous tutorial, we've known that 5 is an integer and "5" is string. 5  and "5" are in different types. How about 2+3 and "2+3"

Review Exercise 1 : Write the following input code in your Python program and run the program. What is the output?

>>>print(2+3)

What is the type of 2+3?

Review Exercise 1 : Write the following input code in your Python program and run the program. What is the output?

>>>print("2+3")

What is the type of "2+3"?

The output in Review Exercise 1 is 5.

The output in Review Exercise 2 is 2+3.

This is because 2 and 3 are intergers. Python operates adding 2 and 3 . In this case, 2 and 3 are called operands and + is the operator.

The type of 2+3 is integer while "2+3" is string. Different 

Operator	Name	Example	Output
+	addition	x+y	the value of x+y
-	subtraction	x-y	the value of x-y
*	multiplication	x*y	the value of x times y
/	division	x/y	the result of x divides y
%	modulus	x%y	the remainder when x divides y
**	Exponentiation	x**y	the value of xy
//	floor division	x//y	the greatest integer less than the result of x divides y