LESSON 1, uNIT 4 - pERCENTS



Gr. 8 MathUnit 4 – PercentStudent CopyLesson 18.N.3 – Relating Fractions, Decimals, & Percent Hundreds & Hundredths ChartsHundreds Charts can be used to represent one whole, or ______%. In this case each small square represents ___%, which equals _________.Hundredths Charts can be used to represent ____%.In this case each small square represents ______% or ______%, which equals __________.370459017335500Ex. 1 Represent the shaded part of these charts as a percent, a decimal, and as a fraction.This hundreds chart represents 100%.Percent = Decimal = Fraction = 37598359588500This hundredths chart represents 1%.Percent = Decimal = Fraction = To Write a Fraction as a PercentWrite the fraction with a denominator that is a power of ____, if possible.ORDivide the _______________ into the _______________, then multiply by ______. (Use a calculator when necessary.)Ex. 2Write the following fractions as percents.45b. 16To Write a Percent as a DecimalPut the number over ______. Then use your knowledge of place value to write the correct decimal number.ORSince all percents are out of _____, it is the same as dividing by ______. When dividing by 100, simply move the decimal place the same number of times as you have __________, which means you will move the decimal ___ places to the ________ (to make the number _______________).Ex. 3Write the following percents as decimals.85%b. 5% c. 0.25% d. 7 25 %Ex. 4Write each percent as a fraction and as a decimal.7% 7.75% 7 ? % Ex. 5Write each fraction as a decimal and as a percent.585651000Ex. 6Cheryl had 23 ? out of 30 on her first math test. She had 31 ? out of 40 on her secondmath test. On which test did Cheryl do better? Did she do much better/worse?AssignmentDo #1 – 21 (omit #5 & #18) p. 239 (need hundredths charts for #10 & 11)Extra Learning Activity: Do #18 p. 241 (need 1-cm grid paper, pencil crayons) ................
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