QUANTITATIVE SKILLS STUDY COMPANION
◉Divisor. Answer: # you divide with
◉Same sign multiplication & division. Answer: Positive result
◉Different signs multiplication & division. Answer: Negative result
◉Perfect squares. Answer: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100
◉Imperfect squares. Answer: Find 1st perfct square before it
◉Proper fraction. Answer: Numerator is less than the denominator
◉Improper fraction. Answer: Numerator is equal to or more than
the denominator
◉Mixed number. Answer: Sum of whole number and fraction
◉Reciprocal. Answer: Switch numerator and denominator
, ◉Addition and Subtraction (fractions). Answer: All fractions must
have common denominators, then add or subtract ONLY numerators
◉Multiplication (fractions). Answer: Multiply numerator and
denominator straight across
◉Division (fractions). Answer: Multiply reciprocal of the divisor
(2nd fraction)
◉Convert decimal to percent. Answer: Multiply decimal by 100 OR
move the decimal point 2 times to the right
◉Convert percent to decimal. Answer: Divide percent by 100 OR
move decimal point 2 times to the left
◉Convert fraction to percent. Answer: 1. Change to decimal (divide
numerator by denominator) 2. Multiply by 100
◉Basic % problem formula. Answer: Percent X whole = part (helps
always to turn percent into a decimal)
◉Percentage discount (tax) formula. Answer: 1. Change percent to
decimal 2. Multiply by og price 3. Add or subtract accordingly