Mathmatics Flashcards
Describe the results of adding a large positive number and a smaller negative number.
The results is a smaller positive number and is the same as subtracting the smaller number from the larger number.
How do you convert a fraction into a decimal?
Divide the numerator by the denominator.
What is a angle?
A figure formed by two lines with a common endpoint
What is a quadrilateral?
A four sided polygon
What is the key step that must performed in order to add or subtract unlike fractions
You must find the least common denominator
How do you divide one fraction by another?
You invert the divisor and multiply the numerator together and the denominator together.
How can you convert a fraction into a percent.
Convert it to a decimal move decimal point two places to the right and add the percent sign.
How can you convert a decimal into a percent
Multiply the decimal by 100 and add the percent sign
What is proportion?
Is a comparison between two or more ratios
What are two different ways that a ratio may be expressed
- As a fraction
2. By placing a colon between two numbers
How do you change a decimal into the nearest equivalent fraction?
Multiply the decimal by the desired denominator
How do you find the square of a number
Multiply the number by itself
How is 100,000 expressed as a power of 10?
10 to the 5th power
What formula is used to find the area of a circle
Area= Pi X Radius squared
What formula is used to find the area of a rectangle?
Area= length X width
What formula is used to find the volume or a rectangular solid?
Volume = length X Width X Hight
Define Pi
3.14 and is used to find the diameter of a circle
Describe a trapezoid
Is a closed four-sided figure having two parallel sides and two sides that are not parallel
What formula is used to find the area of a rectangle and triangle?
Rectangle is Area = length X width
Triangle is Area = (base X hight )divided by 2
What is meant by percentage
A fraction having 100 as a denominator
What is meant by a ratio?
A fraction that compares one number to another
What is meant by scientific notation?
A method of writing very large or very small numbers using powers of 10
What is meant by the root of a number?
Two or more equal numbers that, when multiplied together will equal the number
What is the formula to find the circumference of a circle
Circumference = Pi X Area
