QBasic Programming

Enter any two numbers and display its sum, difference, product and average

REM PROGRAM TO DISPLAY SUM, DIFFERENCE, PRODUCT AND AVERAGE  OF TWO NUMBERS
CLS
INPUT “ENTER FIRST NUMBER”; A
INPUT “ENTER SECOND NUMBER”; B
S = A + B
D = A – B
P = A * B
AV = (A + B) / 2
PRINT “SUM OF TWO NUMBERS”; S
PRINT “DIFFERENCE OF TWO NUMBERS”; D
PRINT “PRODUCT OF TWO NUMBERS”; P
PRINT “AVERAGE OF TWO NUMBERS”; AV
END

USING SUB PROCEDURE

DECLARE SUB SUM (A, B)
DECLARE SUB DIFF (A, B)
DECLARE SUB PROD (A, B)
DECLARE SUB AVERAGE (A, B)
CLS
INPUT “ENTER FIRST NUMBER”; A
INPUT “ENTER SECOND NUMBER”; B
CALL SUM(A, B)
CALL DIFF(A, B)
CALL PROD(A, B)
CALL AVERAGE(A, B)
END

SUB SUM (A, B)
S = A + B
PRINT “SUM OF TWO NUMBERS”; S
END SUB
SUB DIFF (A, B)
D = A - B
PRINT “DIFFERENCE OF TWO NUMBERS”; D
END SUB
SUB PROD (A, B)
P = A * B
PRINT “PRODUCT OF TWO NUMBERS”; P
END SUB

SUB AVERAGE (A, B)
AV = (A + B) / 2
PRINT “AVERAGE OF TWO NUMBERS”; AV
END SUB

USING FUNCTION PROCEDURE

DECLARE FUNCTION SUM (A, B)
DECLARE FUNCTION DIFF (A, B)
DECLARE FUNCTION PROD (A, B)
DECLARE FUNCTION AVERAGE (A, B)
CLS
INPUT “ENTER FIRST NUMBER”; A
INPUT “ENTER SECOND NUMBER”; B
S = SUM(A, B)
D = DIFF (A, B)
P = PROD(A, B)
AV = AVERAGE(A, B)
PRINT “SUM OF TWO NUMBERS”; S
PRINT “DIFFERENCE OF TWO NUMBERS”; D
PRINT “PRODUCT OF TWO NUMBERS”; P
PRINT “AVERAGE OF TWO NUMBERS”; AV
END

FUNCTION SUM (A, B)
SU = A + B
SUM = SU
END FUNCTION

FUNCTION DIFF (A, B)
D = A - B
DIFF = D
END FUNCTION

FUNCTION PROD (A, B)
P = A * B
PROD = P
END FUNCTION

FUNCTION AVERAGE (A, B)
AVGR = (A + B) / 2
AVERAGE = AVGR
END FUNCTION

Enter any two numbers and display its average (Prev Lesson)
(Next Lesson) Enter any three numbers and display its sum, product and average
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