Ever wondered how to solve math problems with multiple operations?...
Mastering the Order of Operations: Learn PEMDAS/GEMDAS

Order Of Operations
When solving math problems with multiple operations, we follow a specific order called PEMDAS (or GEMDAS). This stands for:
G - Grouping symbols (Parentheses, Brackets, Fraction bars, Square roots)
E - Exponents (like squaring a number)
M/D - Multiplication and Division (from left to right)
A/S - Addition and Subtraction (from left to right)
Remember that for M/D and A/S, you don't always do multiplication before division or addition before subtraction. Instead, you work from left to right within each level. For example, in "18÷6×3," you'd do division first because it comes first from left to right.
💡 Think of PEMDAS as a set of rules for a game, not just something to memorize. These rules ensure everyone gets the same answer when solving complex problems!
Let's see this in action with an example: 12-5+7×3²+(10÷5)-2
- Handle grouping symbols: Calculate (10÷5) = 2
- Calculate exponents: 3² = 9
- Do multiplication: 7×9 = 63
- Work from left to right for remaining operations:
- 12-5+63+2-2
- 7+63+2-2
- 70+0
- 70
Now you can solve any expression with multiple operations correctly!
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Mastering the Order of Operations: Learn PEMDAS/GEMDAS
Ever wondered how to solve math problems with multiple operations? The order of operations gives us the roadmap to solve complex expressions step-by-step. This note explains the PEMDAS rule and shows you how to tackle multi-operation problems correctly.

Order Of Operations
When solving math problems with multiple operations, we follow a specific order called PEMDAS (or GEMDAS). This stands for:
G - Grouping symbols (Parentheses, Brackets, Fraction bars, Square roots)
E - Exponents (like squaring a number)
M/D - Multiplication and Division (from left to right)
A/S - Addition and Subtraction (from left to right)
Remember that for M/D and A/S, you don't always do multiplication before division or addition before subtraction. Instead, you work from left to right within each level. For example, in "18÷6×3," you'd do division first because it comes first from left to right.
💡 Think of PEMDAS as a set of rules for a game, not just something to memorize. These rules ensure everyone gets the same answer when solving complex problems!
Let's see this in action with an example: 12-5+7×3²+(10÷5)-2
- Handle grouping symbols: Calculate (10÷5) = 2
- Calculate exponents: 3² = 9
- Do multiplication: 7×9 = 63
- Work from left to right for remaining operations:
- 12-5+63+2-2
- 7+63+2-2
- 70+0
- 70
Now you can solve any expression with multiple operations correctly!
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Analyze the environmental factors and technological innovations that led to the rise of early states in Mesopotamia, Egypt, and the Indus Valley.
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