Scientific Calculators for Students 991ES Office Calculators Desktop, ROATEE 4-Line Display Calculator with Erasable LCD Writing Tablet, Solar Battery Power with Notepad Calculator for School
Scientific Calculators for Students 991ES Office Calculators Desktop, ROATEE 4-Line Display Calculator with Erasable LCD Writing Tablet, Solar Battery Power with Notepad Calculator for School
Dự kiến giao hàng từ Mỹ về Việt Nam ngày 20-12-2025 - 26-12-2025
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Giá bạn thấy bằng giá bạn trả
Yên tâm mua sắm, giải tỏa rủi ro
Hàng chất lượng, rõ nguồn gốc
Sản phẩm nhập khẩu chính ngạch
Liên tục cập nhật hành trình
Miễn phí giao hàng trong nước
Cam kết giá bán niêm yết chính xác trên website
Bảo vệ quyền lợi Khách Hàng, hỗ trợ đổi trả nhanh chóng
Chất lượng đảm bảo, nguồn gốc rõ ràng, có đánh giá từ người mua và thẩm định độ uy tín người bán
An toàn, minh bạch hợp pháp, không sợ rủi ro
Theo dõi và cập nhật quá trình vận đơn thường xuyên
Miễn phí giao hàng trong nước, áp dụng cho đơn hàng từ 1,5 triệu
Thương hiệu ROATEE là cái tên nổi tiếng được rất nhiều khách hàng
trên thế giới chọn lựa. Sản phẩm SCIENTIFIC CALCULATORS FOR STUDENTS 991ES OFFICE CALCULATORS DESKTOP, ROATEE 4-LINE DISPLAY CALCULATOR WITH ERASABLE LCD WRITING TABLET, SOLAR BATTERY POWER WITH NOTEPAD CALCULATOR FOR SCHOOL là sự lựa chọn hoàn hảo nếu
bạn đang tìm mua một món cho riêng mình.
Thông tin chi tiết
Customer Reviews
4.4 out of 5 stars 1,513Reviews
Best Sellers Rank
#6,061 in Office Products (See Top 100 in Office Products) #9 in Scientific Calculators
Tính năng sản phẩm
Sản phẩm Scientific Calculators for Students 991ES Office Calculators Desktop, ROATEE 4-Line Display Calculator with Erasable LCD Writing Tablet, Solar Battery Power with Notepad Calculator for School của thương hiệu ROATEE với nhiều tính năng nổi bậc, là một sản phẩm được nhiều khách hàng trên thế giới lựa chọn.
Product description
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How to take the pen out?
The pen is built in the left lower corner of the calculator,you can slide it out.Please NOTE：It might be a little tight to take it out at the first time.
How to clear up the writing tablet?
Turn the button to the unlocked position, so you can erase the notes on the screen by pressing the clear button.
How do you change the setting from fractions to obtain a decimal answer?
You can change the results through the key 'S⇔D'; Or you can configure calculator setting: 1. Press the button 'SHIFT'. 2. Press the button 'MODE'. 3. Choose 1 or 2 to set the mode of fraction or decimal. MthIO for fraction, LineIO for decimal.
Mô tả
Thông tin chi tiết sản phẩm:
991ES Multifunctional Scientific Calculators: ROATEE business calculator features 417 functions, deal For: General math and science, Pre-Algebra, Algebra 1 and 2, Geometry, Statistics and regressioncal culations, Calculus, fractions, decimals, Calculations involving specificnumber systems (BASE-N, binary,octal, decimal,hexadecimal), Complex number calculations, EQN, Matrix calculations, TABLE, VECTOR, SOLVE, Biology, Chemistry so on and it has memory function calculation more user-friendly
Scientific Calculators with Notepad: This scientific calculators for school and business intergrates calculation and notebook with a stylus pen. The lcd writing tablet enables you to take notes during the calculation, which do great help for study and work. 👉NOTE!Only Unlock the LOCK KEY will the writing area and the erase button work
Multiview: display shows 4 calculations at the same time on screen, greatly improves computational efficiency
Dual Power Solar Panel & Coin Battery: The replaceble coin battery is built in this scientific calculators. It is also powered by solar energy so you don't need to worry about battery depletion
Anti-Drop Body with High Durability and Portable: The body of this scientific calculators undergoes rigorous quality tests. Due to the design of anti-drop body, no need to worry about the damage by accidentally falling and it has only weighs 5 ounces can be easily put in your pocket, which is convenient for business and it is a popular back to school supplies at the beginning of the school year
Usage Tips:Our calculator’s default initial input/output mode is MathI (input) / MathO (output). This is designed to preserve data integrity when dealing with decimals and to display expressions in the same way as textbooks (Natural Textbook). If you would like to switch the output to the mode you mentioned, you can do so by pressing: [Shift] → [Function] → [1] (select input/output mode) → [2] (decimal output mode) or [3] (linear output mode) For more operations, please refer to the attachment or the manual.
What Will You Get?: 991ES scientific calculators*1,instructions*1,exquisite packing box*1,packing case*1.
