PNG SVG PSD EPS MORE
Interface
Flat
Freepikons Interface
Black, symbols, tool
Black
512x512
Signs
Scholastics
signs, Energy, physics
Education
Academic 2
areas, sections, Pie chart
sign, education, calculation
Business
Money Pack 1
Bills, Business, time
Line Icon Set
education, plus, Subtraction
Commerce
iOS7 Premium Fill 2
multiple, calculator, Equal
Tools And Utensils
Money Pack 2
plus, multiply, maths
equality, same, signs
Typicons
calculate, Mathematics Symbol, signs
same, signs, operation
technology
Entypo
Equal, same, equality
Equal, addition, mathematics
Education Lite
education, plus, mathematical
PNG ICO ICNS MORE
Free icons for Windows8/Metro
Equal, sign
DarkSlateGray
sign, Equal
PNG MORE
Mono Gradient Icons
Equal
31x25
PNG ICO MORE
Aroma
Key, Equal
WhiteSmoke
24x24
Addictive Flavour
48x48
PICOL
32x32
Flavour Extended
password, Equal, Key
Gnome 2.18 Icon Theme
Equal, stock
Fugue
Equal, layout
16x16