While Loops

Question

Can someone please explain this problem to me?
z = 2
sum = 0
while z<9:
z += 1
sum=sum+z
print (sum)
Thanks

Answer 1

You havent declare variable m and total, before the loop

Answer 2

Oh sorry I typed in the wrong one

Answer 3

z = 2
sum = 0
while z<9:
z += 1
sum=sum+z
print (sum)

Answer 4

Whats wrong with that ?

Answer 5

Nothing is, I just don’t know how you get the output

Answer 6

Can you please explain it to me?

Answer 7

Try adding this line
print(str(sum)+"+"+str(z))
Inside the loop :D

Answer 8

The answer is 42. I just wanna know how to get to it because I have this worksheet with a bunch of while loops problems but I don’t know how to do them without checking with python. Could you please show me the steps to it?

Answer 9

z = 2
sum = 0
while z<9:
print("z:",z,"\nsum:",sum,"\nz+=1: ", z+1, "\nsum+z: ",sum+(z+1),"\n----\n")
z += 1
sum=sum+z
print (sum)

Answer 10

???? I don’t get it :/

Answer 11

Try to run the code, each step will be printed