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# try an exception

challenge task 2

trial.py
```def add (num1,num2):
return (num1+num2)

sum = add(2,4)
print(sum)

def add (x,y):
return float(x + y)

sum = add(0.2,4)
print(sum)
```

## 1 Answer

Here is how it could look like:

```# make a new function 'add'
# 'add' should take two arguments
def add(num1, num2):
# add a 'try' block
try:
# convert arguments to floats
num1 = float(num1)
num2 = float(num2)
# then add an except to catch the possible 'ValueError'
except ValueError:
# inside the except block 'return None'
return None
# if following the structure from the videos add an 'else' for final return
else:
# add then together and return the total
return num1 + num2
```