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1.

not consistent or having a fixed pattern; liable to change.

"the quality of hospital food is highly variable"

synonyms: | changeable, changing, varying, shifting, fluctuating, irregular, inconstant, inconsistent, fluid, unsteady, unstable, unsettled, fitful, mutable, protean, wavering, vacillating, capricious, fickle, volatile, unpredictable, mercurial, unreliable; informalup and down"the weather on the shoreline is known for being variable

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1.

a word or phrase used to describe a thing or to express a concept, especially in a particular kind of language or branch of study.

"the musical term “leitmotiv”"

synonyms: | word, expression, phrase, turn of phrase, idiom, locution; More

language used on a particular occasion; a way of expressing oneself.

"a protest in the strongest possible terms"

synonyms: | language, mode of expression, manner of speaking,

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There are four mathematical properties which involve addition. The properties are the commutative, associative, additive identity and distributive properties. Commutative property: When two numbers are added, the sum is the same regardless of the order of the addends. For example 4 + 2 = 2 + 4

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The power of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number. In this example: 8² = 8 × 8 = 64. (Other names for power are index or exponent) Exponents.

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Math Term Definition. Perfect square. A perfect square is a number that has an whole number square root. For example, 25 is a perfect square, because is 5, a whole numbe

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When you look at a problem with numbers, you are most likely looking at a numerical expression. A numerical expression is a mathematical sentence involving only numbers and one or more operation symbols. Examples of operation symbols are the ones for addition, subtraction, multiplication, and division.

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"Like terms" are terms whose variables (and their exponents such as the 2 in x²) are the same. In other words, terms that are "like" each other. Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.

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The Multiplicative Identity Property. For a propertywith such a long name, it's really a simple math law. The multiplicative identity property states that any time you multiply a number by 1, the result, or product, is that original number.

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Math Term Definition. Factor. To factor a number means to break it up into numbers that can be multiplied together to get the original number. EXAMPLES: 6 = 3 x 2 so,factors of 6 are 3 and 2 9 = 3 x 3 so, factors of 9 are 3 and 3 Sometimes, numbers can be factored into different combinations.

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An exponent refers to the number of times a number is multiplied by itself. For example, 2 to the 3rd (written like this: 2³) means: 2 x 2 x 2 = 8. 2³ is not the same as 2 x 3 = 6.

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A variable is a letter, for example x, y or z, that represents an unspecified number. 6 + x = 12. To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

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an algebraic expression is a string of numbers, variables, mathematical operations, and possibly exponents. For example, 4x + 3 is a basic algebraicexpression. Or we could get a little more complex with 3x(2x^2 + 2x - 5) + 6y. ... Also notice that there's no equal sign in an algebraic expression

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The distributive property is one of the most frequently used properties in math. In general, this term refers to the distributive property of multiplication which states that the. Definition: Thedistributive property lets you multiply a sum by multiplying each addend separately and then add the products

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Variables are used throughout math after Algebra, and are important to understand. A defining variable is a symbol, such as x, used to describe any number. When avariable is used in an function, we know that it is not just one constant number, but that it can represent many numbers.

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. more ... A fixed value. In Algebra, aconstant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number. Example: in "x + 5 = 9", 5 and 9 are constants

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There are four mathematical properties which involve addition. The properties are the commutative, associative, additive identity and distributive properties. Commutative property: When two numbers are added, the sum is the same regardless of the order of the addends. For example 4 + 2 = 2 + 4

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In mathematics, a base or radix is the number of different digits or combination of digits and letters that a system of counting uses to represent numbers. For example, the most common base used today is the decimal system. Because "dec" means 10, it uses the 10 digits from 0 to 9.

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Elementary Math – Explore Rich Mathematical Ideas

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Children are problem solvers by nature. They are constantly—without always being aware of it—generalizing their observations of the world around them to make sense of what’s going on and make predictions about consequences. EDC’s work honors what students can figure out, and emphasizes connections, and promotes multiple approaches to topics. Our pedagogical approach builds on students’ curiosity, using puzzles and surprise to explore rich mathematical ideas.

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The associative property states that you can add or multiply regardless of how the numbers are grouped. By 'grouped' we mean 'how you use parenthesis'. In other words, if you are adding or multiplying it does not matter where you put the parenthesis. Add some parenthesis any where you like!.

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Math Term Definition. Algebraic Expression. An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and divide). Here are some algebraic expressions: a + 1.

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Algebra is a branch of mathematics that substitutes letters for numbers. Algebra is about finding the unknown or putting real-life variables into equations and then solving them.Algebra can include real and complex numbers, matrices, and vectors