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PERCENTAGES
MATH 6 - PERCENTAGES
Question | Answer |
---|---|
DEFINE: PERCENT | a ratio that compares a number with 100 |
PERCENTS CAN BE WRITTEN AS... | fractions or decimals |
TO REWRITE A PERCENT AS A DECIMAL... | write the percent over 100 and rewrite in lowest terms |
TO REWRITE A PERCENT AS A DECIMAL... | move the decimal point two places to the LEFT |
TO REWRITE A DECIMAL AS A PERCENT... | move the decimal point two places to the RIGHT |
TO REWRITE A FRACTION AS A DECIMAL... | use division to convert the fraction to a decimal then move the decimal point two places to the RIGHT |
MENTAL MATH - TO FIND 50% OF A NUMBER... | divide by 2 or take 1/2 of the number |
MENTAL MATH: TO TAKE 10% OF A NUMBER | move decimal point ONE place to the LEFT |
MENTAL MATH: TO TAKE 1% OF A NUMBER... | move the decimal point TWO places to the LEFT |
TWO WAYS TO SOLVE A PERCENT PROBLEM ARE.. | 1) write and solve an equation; 2) set-up a proportion |
PROPORTION TO CALCULATE PERCENT INCREASES OR DECREASES... | percent change/100 = amt. of change/original amt |