Deci

Key Stage 4

Meaning

Deci is a Unit Prefix that means a number is 10^-1 times the normal unit.

About Deci

Deci can be shortened to a lower case c.

Deci is rarely used with any units other than metres.

Examples

A decimetre (dm) is 10^-1 metres (m).

A decimetre cubed is the same as a litre.

Converting from Deci

To convert from deci to the base unit you must times by 10^-1. \[63000dm = 63000 \times 10^{-1}m = 630m\]

\[3500dm = 3500\times10^{-1}m = 350m\]

\[940dm = 940\times10^{-1}m = 94m\]

\[93dm = 93\times10^{-1}m = 9.3m\]

\[4dm = 4\times10^{-1}m = 0.2m\]

Converting to Deci

To convert to deci from a base unit you must times by 10¹ because there are 10 of them in the base unit. \[7m = 7\times10^{1}cm = 700cm\]

\[15m = 15\times10^{1}dm = 150dm\]

\[8.2m = 8.2\times10^{1}dm = 82dm\]

\[0.26m = 0.26\times10^{1}dm = 2.6dm\]

\[0.03m = 0.03\times10^{1}dm = 0.3dm\]