Python: How do I add variables with integer values together?

Question

I'm new to Python. How do I add variables with integer values together?

balance = 1000
deposit = 50
balance + deposit
print "Balance: " + str(balance)

I want balance and deposit to add together to it 1050, but I'm just getting 1000. I know I'm clearly not formatting it (balance + deposit) correctly, but I can't figure out the right way to format it.

Thanks.

Since no one else has said this yet, I will: you would probably benefit hugely from an introduction-to-Python tutorial (eg. this one or that one). StackOverflow doesn't teach you the basics of programming, it just gives specific answers to specific questions. — SwiftsNamesake
– SwiftsNamesake, Commented Aug 17, 2017 at 20:31

steliosbl · Accepted Answer · 2017-08-17 20:26:35Z

11

Doing this:

balance + deposit

Does the addition and returns the result (1050). However, that result isn't stored anywhere. You need to assign it to a variable:

total = balance + deposit

Or, if you want to increment balance instead of using a new variable, you can use the += operator:

balance += deposit

This is equivalent to doing:

balance = balance + deposit

edited Aug 17, 2017 at 20:26

answered Aug 17, 2017 at 20:24

steliosbl

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2 Comments

Fred Larson Over a year ago

Or assign it back to balance: balance = balance + deposit or balance += deposit

plugwash Over a year ago

Note that a += b is not always equivalent to a = a + b, they are equivalent for numbers, strings and tuples but not for lists.

The_Outsider · Accepted Answer · 2017-08-17 20:26:22Z

2

You need to assign the sum to a variable before printing.

balance = 1000
deposit = 50
total = balance + deposit
print "Balance: " + str(total)

answered Aug 17, 2017 at 20:26

The_Outsider

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Comments

Marco Simone · Accepted Answer · 2017-08-17 20:25:49Z

0

you need to use the assignment operator: balance = balance + deposit OR balance += deposit

answered Aug 17, 2017 at 20:25

Marco Simone

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