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Wednesday, May 19, 2004

Arithmetic Operation

Arithmetic Operation



OPERATORS Symbol in Computer
Addition +
Subtraction -
Multiplication *
Division /
Power / Raise ^


Rules in Arithmetic Operation
1. Priorities:
First: Power / Raise
Second: Multiplication or Division
Third: Addition or Subtraction

2. When operations are in equal priorities, the computer perform
from left to right.

example: 3 - 5 + 4 - 3
= -2 + 4 - 3
= 2 - 3
= -1

3. When operation are in different priorities, the computer
performs those operations with higher priorities first.

example: 3 + 5 ^ 2
= 3 + 25
= 28

4. Operations inside the parentheses must performs first.

example: 2 ^ ( 2 + 5 - 4 / 2 )
= 2 ^ ( 2 + 5 - 2 )
= 2 ^ ( 7 - 2 )
= 2 ^ ( 5 )
= 32

5. No to operators must place side by side.

example: 3 - + 5 are erronous

Assignment:
Perform the indicated operation:
1. 3 + 5 * 4 - 7

2. 4 ^ 2 / 2 * 2 -2

3. 4 + ( 5 * 7 + (1 - 2 / 2 ) )

4. 2 + ^ 3

5. 2 ^ 2 * 2 / 2 + 2 - 2


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