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## Ignore words

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absolute value

The distance of a number from zero on a number line; shown by | |

mixed number

a number made up of a whole number and a fraction

Rational Number

Any number that can be expressed as a ratio of two integers. Example; 6 can be expressed as 6/1, and 0.5 as 1/2.

coordinate plane

A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.

opposite

Two numbers that are an equal distance from zero on a number line; also called additive inverse.

Repeating Decimal

A decimal in which one or more digits repeat infinitely. Example: 0.757575...

equivalent fractions

fractions that have the same value

ordered pair

A pair of numbers that can be used to locate a point on a coordinate plane.

Terminating Decimal

A decimal number that ends or terminates. Example: 6.75

improper fraction

a fraction whose numerator is larger than the denominator

origin

The centre point of a number line (ground floor of a hotel, freezing point on a thermometer)

x-axis

The horizontal axis on a coordinate plane.

y-axis

The vertical axis on a coordinate plane.

Integer

The set of whole numbers and their opposites.

quadrant

the x- and y-axes divide the coordinate plan into four regions. each region is called a ________________.

Bar Notation

In repeating decimals, the line or bar placed over the digits that repeat.

Irrational Number

A number that cannot be written as a fraction with a numerator and a denominator that are integers. The decimal representation of a rational number either ends or repeats.

multiplicative inverse

reciprocal of a number

reciprocal

One of two numbers whose product is 1; it is also called multiplicative inverse.

Unlike Fractions

fractions with different denominators

like fractions

fractions with the same denominator

additive inverse

the opposite of a number

algebraic expression

An expression consisting of one or more numbers and variables along with one or more arithmetic operations

coordinate

The number that corresponds to a point on a number line

counterexample

An example that proves a conjecture false

Conjecture

An educated guess

Equation

A mathematical sentence that contains an equals sign

Evaluate

To find the value of a mathematical expression.

inequality

A mathematical sentence that shows the relationship between quantities that are not equivalent

inverse operations

operations that undo each other

Negative number

a number less than zero

numerical expression

A mathematical phrase that has a combination of numbers and at least one operation

opposites

two numbers that have the same absolute value but have different signs

order of operations

The rules for calculating a maths question containing mixed operations, such as 14 - 2 x 4 + 12

Powers

an expression that indicates repeated multiplication. 2^3 means 2 x 2 x 2.

Solution

The value or values that make an equation or inequality true.

solve

The process used to find the value or values that make an equation true.

Variable

an alphabetic character representing a number, called the value, which is either arbitrary or not fully specified or unknown. It is usually a letter like x or y.

Subtraction involving integers

Add the opposite; Keep, Change, Change

Division with rational numbers, fractions

Multiply by the reciprocal of the divisor

Whole Numbers

Zero and the counting numbers 1, 2, 3, 4, 5, 6, and so on. If a number has a negative sign, a decimal point, or a part that's a fraction, it is NOT a whole number.

Integers

the set of positive whole numbers and their opposites(negative numbers) and 0

Positive Integers

A whole number greater than zero;it is always to the right of zero on the number line

Negative Integers

Whole numbers that are less than 0 and are to the left of 0 on a number line. They are always written with a minus sign (for example -1)

quadrants

Four regions into which a coordinate plane is divided by the x-axis and the y-axis

ratio

A comparison of two quantities, also know as fancy word for fraction.

Rational numbers

Numbers that include integers, wholes, and natural numbers.

numerator

the top part of a fraction

rate

* multiplication

unit rate

A rate with the denominator of 1.

proportion

An equation that states that two ratios are equal.

Natural numbers

A group of numbers that include 1,2, 3,.....

Negatives

Numbers that are less than zero.

Positives

Numbers that are greater than zero.

Subtraction

to take a quantity away from another

Adding

Moving right/up on the number line.

Graph of an Inequality

Graph that shows all the solutions of the inequality

solution of an inequality

Any number that makes the inequality true