copyright©amberpasillas2010 Calculator Needed Today! For today’s lesson get a calculator!
copyright©amberpasillas2010 For Learning to Happen: Take out your calculator. Remove all other thoughts from your mind. Pay close attention. Try all the examples. Ignore all other distractions.
copyright©amberpasillas2010 Percents are written in different forms. Percent Form 35% Verbal Form 35 Percent Fraction Form Decimal Form 0.35
copyright©amberpasillas2010 Percent means “ per hundred.” 100 of
copyright©amberpasillas2010 To change a Percent to a Decimal : Divide the percent by 100. * Dividing by 100 results in moving the decimal 2 places to the left. 20%
copyright©amberpasillas2010 Divide the percent by 100 1) 40% 2) 35% 3) 51% 4) 121% 5) 8% 6) 3412% = 0.40 = 0.35 = 0.51 = 1.21 = 0.08 = 34.12
copyright©amberpasillas2010 Divide the percent by 100 Notice that changing a percent to a decimal results in moving the decimal 2 places to the left
copyright©amberpasillas2010 Divide the percent by 100 WHY DOES THIS WORK? Dividing by 100 hundred results in moving the decimal 2 places to the left.
copyright©amberpasillas2010 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Move 2 places to the right Move 2 places to the left There is a really useful shortcut to change % to decimals, and decimal to % that uses what you know about the alphabet. D P
copyright©amberpasillas2010 Decimal Percent A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Move 2 places to the right Move 2 places to the left Multiply by 100 Divide by 100 Per-cent means per 100
copyright©amberpasillas2010 Decimal Percent A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Move 2 places to the right Move 2 places to the left Multiply by 100 Divide by 100
copyright©amberpasillas2010 To change a Percent to a Fraction Put 100 in the denominator and reduce if possible.
PERCENTS ANSWER PERCENTS ANSWER 1) 50%4) 3% 2) 29%5) 37.5% 3) 129%6) 25% Per-cent means per 100
copyright©amberpasillas2010 FRACTIONS ANSWER FRACTIONS ANSWER ) 2) 3) 4) 5) 6)
copyright©amberpasillas2010 DECIMALS ANSWER DECIMALS ANSWER ) 2) 3) 4) 5) 6) Say the decimal using the correct place value.
copyright©amberpasillas2010 Multiply by 100
copyright©amberpasillas2010 Per-cent means per 100 Divide by 100 Say it correctly!
copyright©amberpasillas2010 Multiply by 100
copyright©amberpasillas2010
REMEMBER: To Always Show Your Work Take out your study guide!!!
copyright©amberpasillas2010 #7 To change a Percent to a Decimal : Divide the percent by % * Dividing by 100 results in moving the decimal 2 places to the left
copyright©amberpasillas2010 To change a Percent to a Fraction : Put 100 in the denominator and reduce if possible. #8