Mathematics Flashcards
Describe the result of adding a large positive number and a smaller negative number
The result is a smaller positive number
What is a mixed number
A combination of a whole number and a fraction
How do you convert a fraction into a decimal
Divide the top number by the bottom number
What is the key step that must be performed in order to add or subtract unlike fractions
You must find the lowest common denominator
How do you divide one fraction by another
You invert the divisor and multiply the numerators together and the denominators together
How do you convert a decimal into a percent
Multiply the decimal by 100 add a percent sign or move the decimal two places to the right and add a percent sign
How do you convert a fraction into a percent
Convert it to a decimal move the decimal point two places to the right and add the percent sign
How do you change a decimal into the nearest equivalent fraction
Multiply the decimal by the desired denominator. The result becomes the numerator in the fraction
What is a ration
The comparison of two numbers or quantities
What are two different ways that a ratio may be expressed
As a fraction, by placing a colon between the two numbers, by using the word to between the two numbers
What is a proportion
A statement of equality between Two or more ratios
What is meant by the root of a number
A root is two or more equal smaller numbers that, when multiplied together, equal the specified number
How do you find the square off a number? Give an example
Multiply the number by itself
Examples: 4x4=16
What is a common method of making computations involving very large or very small numbers more manageable
Convert the numbers into scientific notation by using powers of 10
How is 100,000 expressed as a power of 10
Ten to the 5th power
