1. The problem asks to explain the meaning of "trade 1 ten for 10 units." 2. This phrase typically refers to exchanging one item or quantity called "ten" for ten smaller units. 3. In mathematical or economic terms, it means you give up 1 unit of a larger denomination ("ten") to receive 10 units of a smaller denomination. 4. For example, if "ten" represents a bundle or a single item worth 10 units, trading 1 ten for 10 units means you are breaking down or exchanging the larger item into 10 smaller parts. 5. This is similar to exchanging 1 ten-dollar bill for ten 1-dollar bills in currency. 6. The key idea is that the total value remains the same, but the form changes from one larger unit to multiple smaller units. 7. No complex formula is needed here; it is a simple equivalence or conversion concept.