Subtracting 18 × 102 from 480 × 101 results in 30 × 102.

More Questions from Quantities and Units

• The coulomb is the unit for charge.
• Only electrical quantities have symbols associated with them.
• Voltage, not current, determines the severity of an electrical shock.
• Multiplying 5 × 106 by 4 × 103 results in 20 × 1018.
• 0.00015 V can be expressed in powers of ten as 1.5 × 10–4 V.
• Precision refers to the difference between the measured value and the accepted value.
• 4200 W is the same as 4.2 kW.
• The metric prefix giga is used to represent one billion.
• The number 560,000 is expressed in scientific notation.
• The number 24.5, rounded to two significant digits, is 25.

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