Dogs around the World

Here's your nightly math! Just 5 quick minutes of number fun for kids and parents at home. Read a cool fun fact, followed by math riddles at different levels so everyone can jump in. Your kids will love you for it.

Dogs around the World

December 19, 2015

They say the dog is man’s best friend, and lots of people have these fluffy, furry friends as pets. So Kaiya and Keiry R. asked us, how many dogs are there in the whole world? — and drew us an awesome picture of some examples to get us started. There’s no one perfect answer out there, because while the US officially counts up its pets, not all other countries do. But scientists have tried to guess, coming up with 525 million dogs! This includes 110 million dogs in China, 73 million dogs in the US, 32 million in India, 30 million in Brazil, 12 million in Russia, 9 1/2 million in Japan, 9 million each in South Africa and France, and 7 million in the UK. So now, how many cats are there in the world for those dogs to chase? Do the math below to find out!

Wee ones: How many dogs do you see in the picture?

Little kids: If you take 2 dogs for a walk, how many legs do you have all together?  Bonus: If you take 6 dogs for a walk and 1/2 of them have long tails, how many don’t?

Big kids: The 73 million dogs in America live in just 43 million houses. If everyone has either 1 dog or 2, how many households have just 1?  Bonus: They say there are 600 million cats in the world! If each of the 525 million dogs chases 1 cat, how many cats stay safe?




Wee ones: 6 dogs, plus a couple of bones.

Little kids: 10 legs, since your friends have 8.  Bonus: 3 dogs.

Big kids: 13 million houses, since there are an extra 30 million dogs that have to live in 30 million of those 43 million houses.  Bonus: 75 million cats.

And thank you Kaiya and Keiry for the fun question and drawing of our furry friends!

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About the Author

Laura Overdeck

Laura Overdeck

Laura Bilodeau Overdeck is founder and president of Bedtime Math Foundation. Her goal is to make math as playful for kids as it was for her when she was a child. Her mom had Laura baking while still in diapers, and her dad had her using power tools at a very unsafe age, measuring lengths, widths and angles in the process. Armed with this early love of numbers, Laura went on to get a BA in astrophysics from Princeton University, and an MBA from the Wharton School of Business; she continues to star-gaze today. Laura’s other interests include her three lively children, chocolate, extreme vehicles, and Lego Mindstorms.

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