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Essential functions included — supports memory recall , percentage calculation , and more to meet a variety of needs. Desktop-friendly size — compact 6.2 x 4.4 inches so it fits neatly on desks without feeling too small to use. Large 12-digit display — easy-to-read numbers with great visibility from any angle. Auto shutoff after 10 minutes — conserves battery life and supports long-lasting use. Battery powered — operates on one AAA battery (not included) . 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Standard function calculator — perfect for basic numerical calculations anytime you need quick answers. Big, sensitive keys — easy-to-press buttons for smooth, fast data entry. Essential operations — add, subtract, multiply, and divide with confidence. Percent + MU key — calculate percentages easily, including MU key percent calculations with a single press. Backspace correction — fix mistakes quickly without restarting your entire calculation. Compact handheld size — portable 4.6\" x 2.8\" design that saves space but stays comfortable to use. Large 12-digit display — clear visibility from multiple angles for easy reading. Battery included + auto-off — runs on one LR1130 button cell battery (included) and powers down after 8 minutes of inactivity. 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Great for fractions and coursework — supports classroom-ready math for high school, college, and beyond. Protective hard cover — helps prevent scratches and dings in backpacks and desk drawers. Comfortable to hold — ergonomic design offers a secure grip during long study sessions.","brand":"Mr. Pen","offers":[{"title":"Default Title","offer_id":55072982532468,"sku":"FD01","price":4.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1013\/6014\/0660\/files\/1-13-2.webp?v=1785480100"},{"product_id":"mr-pen-standard-function-calculator-12-digits-small-calculator-pastel-green-solar-calculators","title":"Pastel Green Solar Handheld Calculator with 12-Digit Display","description":"Mr. Pen simple calculator makes everyday math fast and easy for the office, primary school, the market, and home. 12-digit display — large, easy-to-read numbers with clear visibility from multiple angles. 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Dual-power source — runs on a solar panel (works only when it is bright) plus battery for dependable use.","brand":"Mr. Pen","offers":[{"title":"Default Title","offer_id":55072993411444,"sku":"FC01","price":4.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1013\/6014\/0660\/files\/1-21-2.webp?v=1785480166"},{"product_id":"mr-pen-standard-function-calculator-12digits-small-calculator-purple-solar-calculator","title":"Purple 12-Digit Solar Handheld Calculator with Standard Functions","description":"Mr. Pen Solar handheld calculator 12-digit makes everyday math fast and easy for work, school, the market, and home. Standard function calculator — handles basic numerical calculations quickly and reliably. Big, sensitive keys — easy-to-press buttons support smooth, quick data entry. Everyday functions included — add, subtract, multiply, and divide with ease. 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