A bottle contains 3.78 liters of water. Without calculating, determine whether there are more or less than 3.78 deciliters of water in the bottle. Explain your reasoning.

I'd suggest you look up "deciliter." If you do, it should be obvious whether 3.78 liters is greater than or less than 3.78 liters.

What if the question involved "ft?" Which would be larger, 1 foot or 1 inch?