Oplus Symbol or Circled Plus. Letter O plus.
Keywords
abstract,
summing,
addition,
algebra,
buttons,
care,
circle,
concept,
cross,
design,
flat,
health,
help,
hospital,
icon,
learn,
letter,
line,
logic,
logotype,
mathematic,
mathematic,
mathematic,
notation,
operation,
plus,
study,
symbol,
symmetry,
instructing