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Standard Form
O-Level E Math
SI Prefixes
Prefix
Value
Prefix
Value
tera
$10^{12}$
milli
$10^{-3}$
giga
$10^{9}$
micro
$10^{-6}$
mega
$10^{6}$
nano
$10^{-9}$
kilo
$10^{3}$
pico
$10^{-12}$
Million $= 10^6$ Billion $= 10^9$
Formulas for the Singapore O-Level Elementary Mathematics syllabus