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Across
1.A number or symbol multiplied with a variable or an unknown quantity in an algebraic term (Ex:123 is the coefficient in the term 123x3y).
3.a real number that cannot be written as a simple fraction. Ex: π (pi) , √2, etc.
6.The four sections into which the x-y plane is divided by the x- and y-axes.
8.a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression (e.g., 3 in 23 = 2 × 2 × 2)
9.The result of dividing one number or expression by another.
11.A ratio of numbers or variables. May not have a "0" (Ex: 3/4, 1/2, 34/90).
14.The numbers used for counting. That is, the numbers 1, 2, 3, 4, etc.
17.A number that must be multiplied times itself three times to equal a given number..
19.To use the rules of arithmetic and algebra to rewrite an expression as simply as possible.
Down
1.The plane formed by a horizontal axis and a vertical axis, often labeled the x-axis and y-axis, respectively.
2.Terms which have the same variables and corresponding powers and/or roots.
4.a fraction flipped upside down. Multiplicative inverse means the same thing.
5.All positive and negative fractions, including integers and so-called improper fractions. Are the set of all real numbers that can be written as a ratio of integers with nonzero denominator.
7.Any number that is the square of a rational number (Ex: 0, 1, 4, 9, 16, 25, etc).
10.All numbers on the number line. This includes (but is not limited to) positives and negatives, integers and rational numbers, square roots, cube roots , π (pi), etc.
12.a whole number; a number that is not a fraction, a thing complete in itself.
13.A nonnegative number that must be multiplied times itself to equal a given number. The square root of x is written, for example, since √9 = 3(2) = 9.
15.A set of instructions used to solve a problem or obtain a desired result.
16.The result of multiplying a set of numbers or expressions.
18.The ratio of the circumference of a circle to its diameter. Pi is written π and is a transcendental number. π ≈ 3.14159 26535 89793...

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