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Learn: Essential Mathematical Symbols and Operations
iGCSE Mathematics
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Welcome!Welcome to today's lesson on essential mathematical symbols and operations! We'll explore the basic symbols and operations used in mathematics and see how they help us solve problems. Let's get started!
What are Mathematical Symbols?Mathematical symbols are special characters used to represent numbers, operations, relationships, and other concepts in mathematics. They help us write equations and solve problems efficiently and clearly.
Basic Mathematical OperationsMathematics involves four key operations: addition (+), subtraction (−), multiplication (×), and division (÷). These operations are the building blocks for solving problems and understanding more complex concepts.
Quick check: What symbol represents multiplication?
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Order of OperationsIn mathematics, we follow a specific order when solving expressions. The order of operations is often remembered using BODMAS: Brackets, Orders (powers and roots), Division and Multiplication (from left to right), and Addition and Subtraction (from left to right).
The order of operations is remembered using {{blank0}}, which stands for Brackets, {{blank1}}, Division, Multiplication, Addition, and Subtraction.
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Equality and Inequality SymbolsEquality symbols show if two values are the same, represented by =. Inequality symbols, like (less than), > (greater than), ≤ (less than or equal to), and ≥ (greater than or equal to), show comparisons between values.
Which of the following represents 'greater than'?
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Using Symbols in Real-world ContextsMathematical symbols are everywhere in our daily lives. For example, we use + when adding prices while shopping, − when calculating change, × when figuring out the total cost of multiple items, and ÷ when dividing a bill among friends.
Match the items on the left with their correct pairs on the right
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Review Time!Great work! You've learned about essential mathematical symbols and operations. Now let's test your understanding with a few questions.
Which of the following are considered mathematical operations? (Select all that apply)
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Match the items on the left with their correct pairs on the right
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The symbol {{blank0}} is used to represent the mathematical operation of division.
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What does the symbol ‘≤’ mean?
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Great Job!You've completed the lesson on essential mathematical symbols and operations! Keep practising to master these concepts, as they form the foundation for problem-solving in maths.
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