• Brand: Deli
• Deli (EM19710) 12-Digit Desk Calculator
• Model: EM19710,
• 12-digits,
• Big Display,
• Dual Power,
• Auto Power off,
• 120 steps check function

Deli (EM19710) 12-Digit Desk Calculator-  all use the same order for carrying out mathematical operations. This order is not necessarily the same as just reading a calculation from left to right. The rules for carrying out mathematical calculations specify the priority and so the order in which a calculation should be done - scientific calculators follow the same order.