Sharp QS-2130 Change Sign KEY, Power ON/CLEAR KEY, Decimal Point KEY, Minus Equals KEY

11

CHANGE SIGN KEY:

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

	Positive	→	Negative
Example:	5		5.–

12 POWER ON/CLEAR KEY:

Clears the contents of the calculator, excluding the memory register.

•Press the key whenever there are no display indicators, meaningless display figures or signs appear or the keys do not function despite sufficient light.

13 0 00 to 9 NUMERAL KEYS:

14

15

Used to enter numbers.

DECIMAL POINT KEY:

Inputs the decimal place when depressed before or after a numeric entry.

Example: 7 → 0.7

MINUS EQUALS KEY:

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.

16

PLUS EQUALS KEY:

Adds the number to the contents of the calculation register. This key is also used to obtain the results in multiplication and division.

17

18

6

MULTIPLE USE KEY:

Used to perform mark-up, percent change and automatic add-on/discount.

PERCENT KEY:

Permits entry of actual percentages rather than their decimal equivalents for percent calculations.

Example: Set decimal at 2

150 25 → 37.50