Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Will I ever need math besides for school or work ...

How many of us complained in high school algebra class, “I’m never going to use this stuff”? Well, whether you realize it or not, you’re using it on a regular basis. If you’ve ever calculated a tip, ...