103 LearnersLast updated on July 5th, 2025
Math Symbols
Math is based on numbers, symbols, and formulas. Symbols, signs, or characters are used to represent numbers, operations, relationships between two or more values, and more. These symbols help us solve problems quickly. Let us learn more about them in this article.
What are The Common Math Symbols?
Symbols save us from writing long and complicated equations, which in turn saves a lot of time and space. The symbols mentioned below are used in algebra.
Math Symbols Used for Constants
Constants are values that don’t change. In the table below, some of the math symbols used for constants are given along with their values and description.
Math Symbols Used in Logic
The following table shows the math symbols used in logic
Numeric Symbols
In the following table, you’ll find a collection of numeric symbols with examples of their use. Their Hindu-Arabic equivalents are also mentioned accordingly:
Math Symbols Used in Geometry
Symbols play an important role in geometry. In the following table, the commonly used geometrical symbols are listed, along with their names and examples:
Math Symbols Used in Venn Diagrams and Set Theory
The table below shows the mathematical symbols commonly used while working with Venn diagrams and set theory. They often denote the relationship between two or more sets.
Math Symbols used in Combinatorial
Combinatorics deals with counting and arranging objects. In the table given below, the symbols that are used to solve combinatorics problems are mentioned:
Symbols for the Greek Alphabets
Greek alphabets are often used as mathematical symbols. Below is a table with Greek letters along with their names and illustrative examples:
Real Life Applications of Math Symbols
Math symbols are used widely in various fields like physics, engineering, and so on. Some of the key applications are mentioned below:
- Math symbol ‘+’ is used while adding up prices, bills, and in everyday calculations. For example, when we need to add the numbers 5 and 10, we use the ‘+’ symbol. So, 5 + 10 = 15
- In construction, symbols like ‘α’ and ‘θ’ are used to represent angles.
- In statistics and data analysis, ‘Σ’ is used to indicate summation. For e.g., it is used to calculate the mean.
- Percentage symbol is used while calculating interest rates. It is also used for giving discounts and in other financial situations.
- In computer science, databases, programming, and logic circuits, ∧ (logical AND) is used in building algorithms and digital systems.
Common Mistakes and How to Avoid Them While Using Math Symbols
While working with math symbols, students tend to make mistakes. Take a look at some common mistakes given below to avoid them:
Mistake 1
Confusion Between = and
Sometimes students tend to get confused between the equal to (=) symbol and the approximately () symbol. Remember that ‘=’ means equality. For e.g., 3 + 1 = 4. On the other hand, ‘’ is used to indicate approximate value. For e.g., 1.29999 1.3.
Mistake 2
Not Understanding Factorial Notation (n!)
Students can wrongly assume that factorial involves an addition operation instead of multiplication. When it's a factorial operation, remember that only multiplication is involved. For e.g., 5! = 5 × 4 × 3 × 2 × 1 = 120
Mistake 3
Confusing < with >
We can get confused with the direction of the symbol when dealing with the greater than or lesser than symbols. Always remember that the symbol pointing to the left (<) is lesser than the symbol, and that which points to the right (>) is greater than the symbol. For e.g., 5 < 8 represents 5 is lesser than 8 and 8 > 5 represents 8 is greater than 5.
Mistake 4
Not Using Symbol Correctly
Students can get confused with the symbol if they don’t know how to use it. This symbol is used when a value can be both positive and negative. For example, 36 = 6.
Mistake 5
Wrong Order of Operations and Forgetting Parentheses
Students can forget the order of operations while solving equations enclosed by parentheses. The standard order to follow is PEMDAS where P is parentheses, E is exponents, MD is multiplication and division, and AS is addition and subtraction.
Solved Examples on Math Symbols
Problem 1
A square has an area of 25 cm2. What is the side length?
5cm
Explanation
We can find the side of a square by using the formula:
Area = side2
So, side = 25 = 5
This concludes that each side of the square is 5cm.
Problem 2
Which is greater, 0.75 or 0.7?
0.75 is greater.
Explanation
When 0.75 and 0.7 are compared, we know, 0.75 is greater than 0.7, so
0.75>0.7
So, 0.75 is greater.
Problem 3
A $400 jacket is 14% off. What is the sale price?
$344.
Explanation
14% of 400 = 14100 400 = 56
Subtracting the discount from the original price, we get:
Sale price = 400 − 56 = 344
Problem 4
Find the circumference of a circle with radius 5 cm.
The circumference is approximately 31.5 cm.
Explanation
Circumference formula:
C = 2r
C = 2 5 = 10 31.415cm
The circumference is approximately 31.5 cm.
Problem 5
You buy a pen for $1 and a book for $2.5. How do you pay in total to the shopkeeper?
You pay $3.50.
Explanation
Pen = $1 and Book = $2.5
1 + 2.5 = 3.5
So, the total is 3.50.
FAQs on Math Symbols
1.What are math symbols?
2.How many math symbols are there?
3.What is the meaning of ?
4.Are math symbols the same worldwide?
5.Can a symbol have different meanings depending on context?
6.How can children in Australia use numbers in everyday life to understand Math Symbols?
7.What are some fun ways kids in Australia can practice Math Symbols with numbers?
8.What role do numbers and Math Symbols play in helping children in Australia develop problem-solving skills?
9.How can families in Australia create number-rich environments to improve Math Symbols skills?
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Hiralee Lalitkumar Makwana
About the Author
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
Fun Fact
: She loves to read number jokes and games.
