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Learn: Essential Mathematical Symbols and Operations
iGCSE Mathematics
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Welcome!Welcome to today's lesson! We're exploring essential mathematical symbols and operations, which are the building blocks of problem-solving in iGCSE Mathematics.
What are Mathematical Symbols?Mathematical symbols are shorthand representations of concepts or operations, such as addition (+), subtraction (−), multiplication (×), and division (÷). They help simplify complex ideas and make calculations easier to write and understand.
Basic OperationsThe four basic operations are addition, subtraction, multiplication, and division. These operations allow us to combine, separate, multiply, and share quantities. For example, addition (+) combines numbers, while division (÷) splits them into equal parts.
Quick check: Which symbol represents division?
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Order of OperationsOrder of operations refers to the rules for performing calculations in a specific order. It ensures consistent results. The acronym BODMAS stands for Brackets, Orders (powers/roots), Division, Multiplication, Addition, and Subtraction.
In BODMAS, the {{blank0}} step is performed before {{blank1}}.
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Equality and Inequality SymbolsEquality symbols (e.g., =) show that two values are equal, while inequality symbols (, ≤, ≥) compare values to show one is larger, smaller, or equal within constraints.
Match the items on the left with their correct pairs on the right
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Fractions and DecimalsFractions are parts of a whole, like 1/2 or 3/4. Decimals express parts of a whole in base 10, like 0.5 or 0.75. Both are useful for dividing and measuring quantities.
Which of the following are correct representations of 0.5? (Select all that apply)
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Review Time!Great work! You've learned about symbols, operations, and their importance. Let's test your understanding with a few final questions.
Match the items on the left with their correct pairs on the right
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Which symbol represents 'greater than or equal to'?
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The {{blank0}} in 3/4 divides the numerator by the {{blank1}}.
Start the lesson to answer this fill in the blank question
Match the items on the left with their correct pairs on the right
Start the lesson to answer this matching question
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