Section 1
Defining a percent
Property
Percents are a special type of fraction with a denominator of 100. The symbol "%" is used to represent percent. So 420% means , which equals 4.20 as a decimal, or 420 per hundred.
In this Grade 6 lesson from Big Ideas Math Advanced 1, Chapter 15, students learn how to convert between percents and decimals by moving the decimal point two places left or right. The lesson covers writing percents as decimals, writing decimals as percents, and expressing values like fractions, percents, and decimals as equivalent forms. Real-life applications, such as comparing UV ray reflection percentages, help students apply these conversion skills in context.
Section 1
Defining a percent
Percents are a special type of fraction with a denominator of 100. The symbol "%" is used to represent percent. So 420% means , which equals 4.20 as a decimal, or 420 per hundred.
Section 2
Converting Between Percents and Decimals
To convert a percent to a decimal, drop the % symbol and move the decimal point two places to the left. To convert a decimal to a percent, move the decimal point two places to the right and add the % symbol.
Section 3
Real-World Percent-Decimal Applications
Real-world situations require converting between percents and decimals to solve problems involving sales tax, tips, discounts, interest rates, and statistical data where and .
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Section 1
Defining a percent
Percents are a special type of fraction with a denominator of 100. The symbol "%" is used to represent percent. So 420% means , which equals 4.20 as a decimal, or 420 per hundred.
Section 2
Converting Between Percents and Decimals
To convert a percent to a decimal, drop the % symbol and move the decimal point two places to the left. To convert a decimal to a percent, move the decimal point two places to the right and add the % symbol.
Section 3
Real-World Percent-Decimal Applications
Real-world situations require converting between percents and decimals to solve problems involving sales tax, tips, discounts, interest rates, and statistical data where and .
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter