Define Multiples and sub-multiples of units

 Multiples of Units:

• Multiples of units are units that are larger than the standard unit for a particular physical quantity.
• Examples of multiples of units include kilometers for length and tonnes for mass.
• Multiples of units are created by multiplying the standard unit by a factor of 10, 100, 1000, or some other power of 10.
• Multiples of units are used to express larger values of physical quantities, making them easier to work with and understand.

Sub-multiples of Units:

• Sub-multiples of units are units that are smaller than the standard unit for a particular physical quantity.
• Examples of sub-multiples of units include millimeters for length and milligrams for mass.
• Sub-multiples of units are created by dividing the standard unit by a factor of 10, 100, 1000, or some other power of 10.
• Sub-multiples of units are used to express smaller values of physical quantities, making them easier to work with and understand.
• Understanding and using multiples and sub-multiples of units is important for making accurate and precise measurements and calculations.