1. Stating the problem: Convert 3.250 mg to grams. 2. Formula: To convert milligrams (mg) to grams (g), use the conversion factor: $$1\text{ g} = 1000\text{ mg}$$ 3. Conversion rule: Divide the number of milligrams by 1000 to get grams. 4. Calculation: $$3.250\text{ mg} = \frac{3.250}{1000}\text{ g}$$ 5. Simplify the fraction: $$3.250\text{ mg} = 3.250 \times 10^{-3}\text{ g} = 0.00325\text{ g}$$ 6. Final answer: $$3.250\text{ mg} = 0.00325\text{ g}$$ This means 3.250 milligrams is equal to 0.00325 grams.