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# What is expanded form in math?

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In math, expanded form can refer to any type of expression, equation or notation that is completely broken down into its individual parts. Expanded form is commonly used in teaching students place value and factoring.

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In discussion of place value, expanded form is when a number is broken down into each place value with an addition sign placed between each number. For example, 356 would be 300+50+6 in expanded form. When an expression is factored, it changes the expression into expanded form. x2-4 would factor into the expanded form of (x-2)(x+2). The expanded form of quadratic equations is often more useful in graphing than the standard form.

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Math is important because it is used in everyday life. People use math when buying things, making life plans and making other calculations.

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In math, properties demonstrate general rules that are used in calculations. The most commonly used properties in day-to-day math are the properties of addition and multiplication. The commutative property of addition, for example, states that no matter how you order the numbers when adding, the result is the same.