4i) Convert. 255 centigrams \( =\square \) miligrams

1. Recognize that \(1\) centigram is equal to \(\frac{1}{100}\) of a gram and \(1\) milligram is equal to \(\frac{1}{1000}\) of a gram. 2. To convert centigrams to milligrams, set up the conversion factor: \[ 1 \text{ centigram} = \frac{1}{100} \text{ grams} = \frac{1/100}{1/1000} \text{ milligrams} = 10 \text{ milligrams}. \] 3. Multiply the given quantity by the conversion factor: \[ 255 \text{ centigrams} = 255 \times 10 \text{ milligrams} = 2550 \text{ milligrams}. \] 4. Therefore, the answer is: \[ 255 \text{ centigrams} = 2550 \text{ milligrams}. \]