Section 1: Rational Numbers

This set of vocabulary flashcards covers core concepts of rational numbers, arithmetic averages, and mathematical terminology used in real-world scenarios like finance and physics.

Rational Numbers

Numbers used for all operations in world stock exchanges; the central topic of Section 1 which includes negative fractions.

Negative Fractions

A key concept within the study of rational numbers, identified as a primary keyword in the lesson notes.

Arithmetic Mean

The calculation used to determine the average change in the price of gold over the period from 2017 to 2022.

Gold Price Change (2022)

The annual change recorded for gold in 2022, which was a decrease of $1.2$ manat.

Rounding

The process of approximating decimals such as $3.273$, $8.785$, and $0.165$ to specific place values.

Increasing Order

An arrangement of numbers, such as transitioning from $0.48$ to $0.64$, where values proceed from smallest to largest.

Decreasing Order

An arrangement of values where terms are ordered from the largest to the smallest.

Hybrid Automobile

A vehicle mentioned in word problems with a fuel tank capacity of $50\,l$ and a fuel consumption rate of $4.8\,l$ per $100\,km$.

Temperature Decrease Rate

The rate at which the air temperature changed after 12:00, recorded as a decrease of $2^{\circ}C$ every hour.

World Stock Exchanges

Platforms where all financial operations and transactions are conducted using rational numbers.