Which value equals 0.01 gram?

• A. 0.001 gram
• B. 0.01 gram
• C. 0.1 gram
• D. 1 gram

Answer: (B)

Understanding decimal place values in the metric system helps here. After the decimal point, the first digit is tenths, the second is hundredths, and the third is thousandths. The value 0.01 has two digits after the decimal, so it sits in the hundredths place, meaning one hundredth of a gram. In other words, 0.01 gram equals one hundredth of a gram (which is 10 milligrams). For reference, 0.001 gram is one thousandth of a gram (1 mg), 0.1 gram is one tenth of a gram (100 mg), and 1 gram is 1000 milligrams. So the value that equals 0.01 gram is 0.01 gram itself.