У осьминога ноль костей: книга-считалка о нашем удивительном мире

Interesting... How many beats per hour does a black bear's heart make? How many times a day do you inhale and exhale? How far will you have to fly to the Moon and back? How about to Saturn? How many meters are there from you to the clouds? What happens if you add a few zeros at the end of a number? This book has answers to all these questions! And many more amazing facts about numbers from 0 to 9 and those that end in zeros, from 10 to 9,000,000,000. Get ready: when you fall in love with numbers and want to count everything in the world, you'll learn a lot about the world around you.