LESSON 1

 

Clearing and Correcting Keys

Keys:

 

 ON            Clears the display, memory and any pending operations.  Sets the mode to degrees and changes notation to norm.  (Scientific notation)

 

 AC             (All clear) Clears all pending operations but does not change mode or notation settings.

 

 

  C              (Clear) Clears the last entry but does not affect the modes or notation settings.

 

               (Backspace) Clears the digit(s) on the display screen from right to left, allowing you to correct an entry without reentering the entire number.

 

 

Try this                                            Enter                                        Display

 

Turn on calculator                             ON                                                             0

               

Enter 1569                                       1569                                                     1569

 

Change to 1568                                  8                                                   1568

 

Add 395                                             +    395                                                 395

 

Clear the entry and add 295            C   295                                                  295

 

Clear entry and subtract 295 C      295                                    295     

And calculate the result                     =                                                        1273

 

Clear display                                    AC                                                             0