Included in this pack are 2 sets of 32 loop cards which link standard form (e.g. 5364723) for writing numbers with the expanded (e.g. 5000000 + 300000 + 60000 + 4000 + 700 + 20 + 3) and word form (e.g. five million, three hundred and sixty four thousand, two hundred and twenty three). 1 set uses 7-digit numbers (millions) and another set uses hundreds, tens, units and decimals of 3 decimal places (HTU.thth).