Simple Operations : Part-1
Python has the capability of carrying out calculations . Enter a calculation directly into Python console , and it will output the answer .
>>> 2+2
4
>>> 5+4-3
6
Question:
How dose this code output ?
>>> 1+2+3
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Simple Operations : Part-2
Python also carries out multiplication and division , using an asterisk to indicate multiplication and a forward slash to indicate division.
Use parentheses to determine which operations and performed first.
>>> 2 * (3+4)
14
>>> 10 / 2
5.0
Question :
Which option is output by this code ?
>>>(4 + 8) / 2
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Simple Operations : Part-3
The minus sign indicates a negative number . Operations are performed on negative numbers , just as they are on positive ones .
>>> -7
-7
>>> (-7 + 2) * (-4)
20
Question :
Fill in the blank to make this code correct .
>>> (___5 - 1) * 3
-18
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Simple Operations : Part-4
Dividing by zero in Python produces an error , as no answer can be calculated .
>>> 11 / 0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ZeroDivisionError: division by zero
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