User manual KOMPERNASS KH 2283 CALCULATOR TRAINER

[. . . ] The device requires a 3V lithium battery type CR2032, which is already preinstalled. If the display remains blank after it has been switched on the batteries are depleted. to change the batteries open the battery compartment on the rear panel of the device. > For this unscrew both of the screws ; and remove the battery compartment cover 2). [. . . ] When the function is switched off the symbol lights up in the display q. Thereby the strokes in the answer indicator 2% show how many digits the correct answer has. Button t when you want the device to set division tasks, button y when you want the device to set multiplication tasks, button u when you want the device to set subtraction tasks, button i when you want the device to set addition tasks. The face is depicted as either sad ( incorrect entry) or happy ( correct entry), · A corresponding melody is played (only when the acoustic function is switched on), · With a correct entry, in the display q is shown an additional goblet (%). 20 seconds has elapsed without an input the task is considered unsolved and/or incorrect. > After the input of an incorrect answer the same task will be presented to you a second time. If, after this you are still unable to solve the task the device shows the solution in the display q and then offers you a new task. If this is the first time that the device has set this task then you will be offered a second chance here also. Then press the ENTER button o again and the device will show the solution in the display q and offers you a new task. > After every 5 tasks the device determines an evaluation of your entries. A higher difficulty level in this programme results in the numbers being greater. G 2 - Recognize the carried out calculation operation > To select this programme press the button G 2 1%. Now determine which of the 4 basic calculation types must be applied to the numbers in order to achieve the answer located in the lower line. 20 seconds press the corresponding button and then the arithmetic operator will be superimposed between the two numbers. We have already described under G 1 how the device evaluates your entries and/or behaves when the entry is missing or incorrect. The implementation of the "second chance" and the evaluation of your entries accordingly also applies here therefore we will dispense with a repetition here and with explanations of other training programmes. A higher difficulty level in this programme results in the numbers being greater. > Here you must recognize which logical sequence the numbers form when read from left to right. 20 seconds enter the next highest number in the sequence as the answer and press the ENTER button o. G 4 - Retention of numbers > To select this programme press the button G 4 1#. A higher difficulty level in this programme results in the numbers being greater. g 5 - Sequence recognition > To select this programme press the button G 5 1@. [. . . ] The purpose of this obligation is to ensure that batteries are disposed of in a non-polluting manner. This device has been tested and approved regarding conformance with the fundamental requirements and other relevent regulations of the EMV directive 2004/108/EG. The warranty for this device is for 3 years from the date of purchase. The device has been manufactured with care and meticulously examined before delivery. [. . . ]