Change Sign Key; Power On/Clear Key; Numeral Keys; Decimal Point Key - Sharp COMPET QS-2130 Operation Manual

CHANGE SIGN KEY:

11
Changes the sign of a number from a positive to a negative or a negative to a positive.
Example:

POWER ON/CLEAR KEY:

12
Clears the contents of the calculator, excluding the memory register.
•
Press the
figures or signs appear or the keys do not function despite sufficient light.
0 00 9
to
13

DECIMAL POINT KEY:

14
Inputs the decimal place when depressed before or after a numeric entry.
Example:
MINUS EQUALS KEY:
15
Subtracts the number from the contents of the calculation register. This key is also used
to obtain the product/quotient in negative multiplication and division.
PLUS EQUALS KEY:
16
Adds the number to the contents of the calculation register. This key is also used to
obtain the results in multiplication and division.
MULTIPLE USE KEY:
17
Used to perform mark-up, percent change and automatic add-on/discount.
PERCENT KEY:
18
Permits entry of actual percentages rather than their decimal equivalents for percent
calculations.
Example:
6
Positive Negative
→
5
key whenever there are no display indicators, meaningless display

NUMERAL KEYS:

Used to enter numbers.
7 → 0.7
Set decimal at 2
→ 37.50
150 25
5.–