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Unit 1
Rational Number Operations
Term | Definition |
---|---|
opposites | Two numbers that lie the same distance from 0 on the number line but in opposite directions (-1, 1) |
additive inverse | The additive inverse of any number x is the number that gives zero when added to x (5, -5 |
integers | All whole numbers and their opposites |
absolute value | The distance of a number from zero on a number line. |
zero pair | a pair of numbers whose sum is zero |
difference | Solution to a subtraction problem |
sum | Solution to an addition problem |
inverse operations | Operations that undo each other (+, -) |
numerator | The number above the fraction bar that indicates the number of parts of the whole there are in a rational number |
denominator | The number below the fraction bar that indicates how many parts the whole is divided into |
terminating decimal | While expressing a fraction into a decimal by the division method, if the division comes to an end after a finite number of steps, then such a decimal is a Terminating Decimal. Examples : 1⁄4 = 0.25 |
repeating decimal | A digit or a set of digits in the decimal part is repeated continuously. Example: 5⁄6 = 0.8333.... |
rational number | Any number that can be expressed as a ratio of two integers. |
least common multiple | The smallest positive number that is a multiple of two or more given numbers. |
trigger words | Words or Phrases that tell you to do a certain mathematical operation such as addition or subtraction |