+ plus

- minus

± plus or minus

× times/multiplied by

÷ divided by

= is/equals/is equal to

≠ Is not equal to/does not equal

< Is less than

≤ Is less than or equal to

> Is more than

≥ Is more than or equal to

% percent

∞ infinity

in inch

ft foot

yd yard

ml mile

mm millimeter

cm centimeter

m metre

km kilometer

ha hectare

L litre