Bedtime Math fan Isha I. asked us, how many teeth are there in the world? When you stop to count all the teeth in humans and animals, the numbers get big! Read on to sink your teeth into the math behind this toothy question.
Our fans are really curious about the number of animals in the world. Fan Chryssa Z. asked us, are there more people or fish in the world? And fan Lora S. asked us, how many birds are there — does the sky have even more living things than water or land? Read on to find out the answers – and soar through the math in land and sea animals!