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An electronic pocket calculator with a seven-segment liquid-crystal display (LCD)
A mockup with notebooks, calculator, coffee cup and pen on a light green surface, softly lit sunlight from the window.
Close up of a hand using a traditional wooden abacus with brown beads on a light background, concept of counting, calculation, and mathematics.
Businessman doing calculations with smart mobile phone at office desk.
Accountant used a calculator financial analysis managing payroll tax accounting budget accounts. A person is sitting at a desk with a laptop and a calculator.

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