Essential Quant Skills Flashcards
If a fraction is between 0 and 1, adding a positive constant to the num/den will make the fraction _______(larger/smaller).
larger
If a fraction is between 0 and 1, subtracting a positive constant from the num/den will make the fraction _______(larger/smaller)
smaller
If a fraction is greater than one, adding a positive constant to the num/den will make the fraction ______(larger/smaller)
smaller
If a fraction is greater than one, subtracting a positive constant will make the fraction _______(smaller/larger)
larger
To convert a fraction to a percent,
Divide the numerator by the denominator. multiply the answer by 100 and attach the percent sign
Percent means ______
“divide by 100”
To convert a percent to a decimal, _______________________
drop the percent sign and move the decimal point two places to the left.
To convert a fraction to a decimal, ____________________________
we just use long division
3 Types of Decimals
- Terminal
- Repeating
- Non-terminal, non-repeating (cannot be converted to fractions)
When we put a number under the radical symbol, the output can be positive or negative
False
Estimation of squared numbers
When presented with a large number raised to the second power, if the answer choices all have unique digits, then we can square just the units digit of the original number to determine the units digits of the full result.
Perfect squares never end in 2,3,7,8
True
Two unique properties of factorials
- 0! = 1
2. 1! = 1