MS – Ratios, Rates and Percentages

Introduction to ratio 3 Lessons

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What is a ratio? Ratios are the comparison of two or more items.

Practice 1 - Write ratios of two simple items Few very simple problems to get the idea of ratio.

Practice 2 - Compare two items and write ratios Compare and write ratios

Practice ratio 3 Lessons

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Practice set 1 - Find the ratios Understand ratio taking running and walking as an example

Practice set 2 - Find the ratios You will get some idea of equivalent ratio with these problems.

Practice set 3 - Model ratio as picture and find ratios Show ratio as picture to understand the concept.

Ratio vs Fraction 2 Lessons

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Similarity between ratio and fraction Ratios can be written as fraction as well.

Difference between ratio and fraction You use ratios to compare two different items.

Equivalent ratio 3 Lessons

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What is equivalent ratio? Equivalent ratios and equivalent fractions are similar. You just multiply or divide both the numbers.

Practice Set 1 - Find equivalent rations & convert to simplest form Convert ratios to equivalent simplest form by multiplying or dividing.

Practice Set 2 - Find the missing number using equivalent ratio Find the multiplying or dividing number to find the missing number.

Introduction to rate 2 Lessons

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What is rate? Rate is a ratio expressed in per unit. Example: What is your rate of earning? This means how much do you earn per ONE hour or per ONE day or per ONE minute.

Practice : Find rate Find rates from ratios.

Practice ratio and rate 5 Lessons

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Practice Set 1 - Ratio and Rate

Practice Set 2 - Ratio and Rate

Practice Set 3 - Ratio and Rate

Practice Set 4 - Ratio and Rate

Practice Set 5 - Ratio and Rate

Percent : Basics of percent 9 Lessons

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What is percent? What does percent mean in real life?

How to convert fraction to percent We will learn 2 different ways to convert fraction to percent

How to convert decimal to percent Just multiply a decimal by 100.

How to convert percent to fraction and decimal Just divide by 100.

Practice 1 - Convert Fraction to percent Convert 4 fractions to percent.

Practice 2 - Convert decimal to percent 8 problems - convert to percent ( 4 questions) + convert % to fraction and decimals ( 4 questions)

How to convert fractional percent to fraction and decimal Example : How to convert 1/2% to fraction

Practice 3 - Convert fractional percent to fraction 4 problems - convert to fraction.

What does more than 100% mean? What does 125% mean actually?

Percent : Percent of a number 3 Lessons

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What does percent of a number mean? when you see 20% off in a store, what does that mean?

Practice 1 - Find the price after discount 4 Questions. Example: If you get 20% off on a t-shirt, how much do you have to pay?

Practice 2 - Use of percent in everyday life 5 Questions. Example : A worker worked 9 months of the year. What percent of the time did he work in that year?

Percent : Express difference between 2 numbers as percent 4 Lessons

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How to express difference in percent You went to a store with $12 in your pocket. After you bought few things, you still have $12. What percent of money did you spend?

Practice 1 - Write difference as percent Example : The population of a small town was 3200 in 1980. The population went down to 3000 in 1981. What was the percentage change in population?

How to find out original price if you know the discounted price You paid $10 after 60% discount. What is the original price? we will discuss this problem with 2 approaches.

Practice 1 - Find the original number Example : You paid $328 on an item after 20% discount. What is the original price?

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