1.5.1

Arithmetic & Relational Operators

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Arithmetic Operators

Operators are symbols that represent a specific function within a program.

Basic operators

Basic operators

  • Addition is done using a + sign.
  • Subtraction is done using a - sign.
  • Division is done using a / sign.
  • Multiplication is done using a * sign.
  • Exponentiation is done using a ** sign.
Modulo operator

Modulo operator

  • The modulo operator gives the remainder of the division of two numbers.
  • For example:
    • 5 % 2 would be equal to 1.
Integer division

Integer division

  • The integer division operator returns the quotient (whole part) of a division.
  • For example:
    • 5 // 2 would give 2.

Relational Operators

Relational operators compare two values, and produce a True or False value.

Equality

Equality

  • We can test if two values are equal using the equality operator. For example:
    • 2 == 2 would evaluate to True.
  • We can test if two values are not equal using the not-equal-to operator:
    • 2 != 2 would evaluate to False.
Comparison

Comparison

  • We can compare two numbers using the less than and greater than signs. For example:
    • 2 < 3 evaluates to True.
    • 2 > 3 evaluates to False.
  • We can test for less than or equal, or greater than or equal like this:
    • 2 <= 3 evaluates to True.
    • 3 >= 3 evaluates to True.
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1

Introduction to Python

1.1

Python

1.1.1Python
1.2

Input & Output

1.2.1Input & Output
1.3

Data Types

1.3.1Data Types
1.4

Variables & Constants

1.4.1Variables & Constants
1.5

Operators

1.5.1Arithmetic & Relational Operators1.5.2Boolean & Assignment Operators 2
1.6

Program Flow

1.6.1Selection1.6.2Iteration
2

Data Structures

2.1

Lists & Strings

2.1.1Lists2.1.2Strings
2.2

File Handling

2.2.1File Handling
3

Modularity

3.1

Subroutines

3.1.1Subroutines
3.2

Data Flow

3.2.1Data Flow
4

Good Practice

4.1

Naming & Whitespace

4.1.1Identifiers4.1.2Whitespace
4.2

Comments

4.2.1Comments
4.3

Exceptions

4.3.1Exceptions

Practice questions on Arithmetic & Relational Operators

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    What is the result of 17 % 5?Multiple choice
  2. 2
    Which of the following statements are correct of arithmetic operators?True / false
  3. 3
    The // operation performs which operation?Multiple choice
  4. 4
    Which of these is the correct operator for 'not equal to'?Multiple choice
  5. 5
    Toggle until all are correct: Which of these statements evaluates to True?True / false
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Variables & Constants

Boolean & Assignment Operators 2