Which had more electric cars, Europe or the United States?

Grade level: 3rd – 5th grades

Skills: Bar graphs

Related environmental issues: Energy /  Air / Climate Change


The number of electric cars on the road has been significantly increasing.  There were over 7 million electric cars running in the world by the end of 2019. The table below shows where and how many electric cars are running in the world in 2019.


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  1. Which region had the most electric cars in the world?
  2. Which region had more electric cars, the United States or Europe?
  3. How many electric cars were running in the United States in 2019?



International Energy Agency, Electric Vehicles on Track


Answer keys

1. China
2. Europe
3. 1.5 million cars


Factual Environmental Math Problems (2020)

Just published and now available from Amazon  (paperback)

About this book

The objective of Factful Environmental Math Problems is to cultivate our young people’s skills to analyze and evaluate fact-based data for understanding our world, while improving their math skills and critical thinking skills.

With the rise of the Internet and new technology, building skills to analyze and evaluate fact-based data becomes increasingly important for our young people to prepare for this rapidly changing world. These skills minimize their chances of being brainwashed by false information and making uniformed decisions and ultimately help develop their critical thinking skills. (Read more)

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Published: March 26, 2020

Price: $6.25

A person in which country uses more water on average – US or Canada?

Grade level: 3rd – 5th grades

Skills: Bar graphs

Related environmental issues: Water

The bar graph below shows how much water is consumed per person every hour in six countries.

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  1. On average, a person in which country uses the most water among these countries?
  2. A person in how many countries uses more than 20 gallons of water every hour on average?
  3. On average, a person in which country uses the least water among these countries?
  4. A person in which county uses twice as much water as a person in Germany on average?


Source: statistic (2020) Annual water consumption per capita in 2017


Answer keys

2. Three (US, Canada, and Australia)




The 225 Math Quizzes That Will Make You An Environmental Expert (2019) is available from Amazon.com.  (paperback)

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About this book>>>

Table of Contents >>>

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