Math Flashcards
What is the key step to perform in preparing to add or subtract unlike fractions?
Find the lowest common denominator.
What is the procedure for dividing one fraction by another fraction?
Invert the divisor and multiply the numerators together and denominators together.
What is mixed number?
A combination of a whole number and a fraction.
What is a ratio?
The comparasion of two numbers or quantities.
What is the procedure for changing a decimal into the nearest equivalente fraction?
Multiply the decimal by the desired denominator of the fraction. Divide the numerator by the denominator.
Example. .50 * 100 =100. ; 50 / 100 = .50
What is the procedure for converting a fraction into a decimal?
Divide the numerator by the denominator.
Name at least two ways a ratio may be expressed:
As a fraction (1/2), using a colon (1:2) or using the word “TO” between two numbers.
What is a proportion?
A statement of equality beteween two or more ratios.
Example. 1:1 & 2:2
How do you convert a decimal as a percent?
(1)Multiply the decimal by 100 and add the percent sign % (2) Move the decimal point two places to the right and add the % singn (.10 to 10%)
What is the procedure for converting a fraction into percent?
Divide the numerator by the denominator then move the decimal point to the right and add the persent sign %.
What is the sum of a large positive number and a small negative number?
A samaller positive number.
What is the root of a number?
Is two or more equal smaller numbers when multiplied together equal the especified number.
What is a squared number or an example of a squared number?
Multiplied the number by itself (2x2=4; 4x4=16)
2^2; 2 to the power of 2
When using the powers of 10, how may 1,000,000 be defined?
10^6 (10 to the sixth power)
What is π (Pi) ?
3.1416, ratio of the circunference to the diameter of any circle.
