Blue school background in cell with numbers and arithmetic signs. Vector illustration
Schlüsselwörter
school,
background,
number,
arithmetic,
signs,
blue,
mobile phone,
graph,
mathematic,
symbol,
mathematic,
education,
mathematical,
illustration,
graphic,
vector,
numeral,
hand-drawn,
1,
2,
three,
4,
5,
6,
7,
8,
9,
zero,
multiply,
divide,
exclamation mark,
question mark
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