Which prefix has the multiplier 0.01?

• A. centi- c
• B. deci- d
• C. milli- m
• D. nano- n

Answer: (B)

Understanding metric prefixes means knowing how each prefix scales the base unit by a power of ten. Deci- moves the decimal one place left, giving 0.1. Centi- moves two places left, giving 0.01. Milli- moves three places left, giving 0.001. Nano- moves nine places left, giving 0.000000001. Since 0.01 is 1/100, the prefix that matches this multiplier is centi-. For example, 1 centimeter is 0.01 meters, and 50 centiliters is 0.50 liters. This quick scale helps you convert between related units without heavy calculation.