Write the numbers in a vertical list, lining up the decimal points. If the numbers have a different amount of digits, there may be some gaps in the columns. Fill in any gaps with a zero so that each ...

Calculate \(3.6 + 14.73\). Make sure that units line up with units, tenths line up with tenths and so on. Use zeros as placeholders if you need to. David is doing some DIY. He buys a \({2}~m\) length ...

Editor's Note: This is the first article in a two-part series on decimal representations and decimal arithmetic in general, and on Binary Coded Decimal (BCD) in particular. In this first installment, ...