Monroe 770 Operating Instructions Manual page 6

III
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OPERATING CONTROLS AND THEIR USE
TURN ON THE CALCULATOR
To turn on the Monroe 770, move the on·off slide (4) to the left so the
red dot shows. No warm·up time is required. To turn the calculator
off, move the sl ide to the right.
Before starting to calculate you should make sure the arithmetic reg·
isters and display (1) are cleared by depressing the'll and C keys.
DISPLAY
The display shows all entries and answers
In
large, illuminated
numerals.
NUMBER ENTRY
Set a number in the 10·key keyboard (25) by depressing the keys that'
correspond to the digits in the number. For example: 406 is set by
depressing 4, then 0, then 6. The number is shown in the display.
DECIMAL KEY
Depressing the decimal key (24) locates the decimal in the keyboard
number. Touch this key before setting the decimal part of the num·
ber. When setting a whole number, the decimal key does not have to
be used.
DISPLAY CLEAR KEY
If a number is set incorrectly, it can be cleared by depressing the
C key (12).
4
111111
111111
111111
. 0
-
.
.
C
,