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Casio Desk calculator FX-991DE Plus Grey

Brand: Casio - Article no: 5725818
5725818 [5725818]{}

The new kid on the block

The first calculator with the revolutionary Natural Textbook Display lets you enter equations just as you see them in your textbooks. Advanced mathematical functionality, makes it ideal for students and professionals.


€27,99 Each from 3 Pieces

€33,59 incl. VAT

QTY excl. VAT incl. VAT
1-2 €29,99 €35,99
3+ €27,99 €33,59

  • Description

    Casio scientific calculator FX-991DE Plus. Natural textbook display with a large mouse button for editing. With 417 built-in functions, 40 physical constants, matrix and vector calculations, 40 pairs of values for metric conversions, solving equations (linear, higher degree), 9 constant memory, function chart, function calculation with the Calc button (temporary formula memory), SCI, FIX random number generator, 24 levels of brackets, correction function, numerical calculation of integral surfaces, numerical differential calculation. Calculations based on n (BIN / OCT / DEC / HEX). Calculating with complex numbers, logic and combinatorics. Has a hard case an operates on solar power an a battery backup. Dimensions: 11 x 80 x 162 mm.

  • Specifications

    Viking No. 5725818
    EAN/UPC 4971850469032
    Basic Product Colour Grey
    Brand Casio
    Colour Grey
    Digits Mantissa/Exponent 2 lines
    Display Screen Type LCD
    EAN/UPC 4971850469032
    Functions 580
    Manufacturer Part No. FX-991DEPLUS
    Measurements 8 x 16.1 x 1.3 cm
    Memory Constants 6
    Memory Keys (Quantity) 6
    Model FX-991DE Plus
    Number of Characters/Lines 15/1 + 10/1
    Parentheses 24
    Power Supply Type Battery/Solar
    Product Type Desk calculator
    Square Root Function Yes
    Statistical Calculations 2-dimensional (x,y)
    Warranty Manufacturer Casio Computer Co., Ltd
    Weight 105 g
  • Free delivery

    Delivery costs

    An order of €49,00* (excl. VAT) or higher is delivered free.  Orders below this value will have a delivery charge added of €2,95 (excl. VAT). The insurance charge of €1,95 (excl. VAT) is added to each order independently from the order amount. 

    For partial deliveries the delivery charge is also calculated based on the total amount (excl. VAT) of your order. 

    *Postage stamps are exempt from free delivery limit.

    Delivery times

    Saturday – Sunday: Tuesday**

    *Orders that are received by 3:00 pm on Friday are delivered with reservation on Mondays.

    **Orders that are received by 3:00 pm on workdays are delivered with reservation on the next day.

    For some products, such as furniture, a deviating delivery date of a few days may apply. This information is listed for the relevant products in our online catalogue or on this website.

    The next possible delivery date is displayed during the online order and the order confirmation. 

    All articles marked with "delayed delivery" are delivered directly from the suppliers with different logistics partners, so the delivery time varies.

  • Payment options

    Credit card

    We accept payments with Visa and Eurocard / Mastercard / American Express. Your transactions are executed safely. Your personal data is transmitted securely by the SSL system.


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    Delivery note / invoice

    The invoice / delivery note will be added to the delivery address. After accepting the order, you have a payment term of 30 days.

  • Reviews