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Leopard
numbers
Black
256x256
IWork 10
White, numbers
512x512
Black, numbers
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Mixed
Cartoon
Monochrome Icon
study, calculator, numbers
478x512
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Outline
Hawcons
File, numbers
File, document, numbers
document, numbers, File
Glyph
shopping website
calculator, calculation, numbers
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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
calculator, numbers, calculate
64x64
hand drawn, calculator, numbers
UI
Wirecons Free Vector Icons
divide, math, plus
3D
Pretty Office 10
Desktop apps
Artcore