I will guess your age in 2019 :) Follow the instructions carefully :) Only works with whole numbers xD Online calculator: http://www.online-calculator.com (you can use a pen & paper if you wish) Math is (as most people would say) boring. But with the power of math a number of things are possible. Try and see if you can make something like this using math :) I, personally, am not a big fan of maths but this has changed my mind a little bit :D by amybarton: same:)