Addition Thinkboard (Decimals)

This thinkboard is to do with decimals. If you don't know what decimals are then I'll give you a quick lesson. Decimals is the point in the number that separates the whole numbers from the decimal numbers. Decimal numbers aren't whole numbers, but when you add them together they can become whole numbers. They have weird names like tenths, hundredths, that kind of stuff. As you can possibly see is instead of just ten it's tenth. Hope you learnt something new when you looked at the thinkboard, thank you.