Summary - Loops
- Python course
- Beginner
- Lesson 47/116
- 5 min
Combine for, while and range to write a multiplication table.
Summary - Loops
In this group you learned for, range, while, break/continue and loop else.
- for: collection loop.
- range: number range.
- while: condition loop.
- break: exit, continue: skip.
- else: breakless end.
Now two tasks combine these concepts.
This summary gives a chance to combine loop concepts in a real example.
This summary gives a chance to combine loop concepts in a real example.
This summary gives a chance to combine loop concepts in a real example.
This summary gives a chance to combine loop concepts in a real example.
Practice Sum with for
Assign total = 0. Write for n in [1, 2, 3]: total += n. Print print(total).
Starter code
# Sum with forSample solution
total = 0
for n in [1, 2, 3]:
total += n
print(total)Expected output
6
Practice Count with while
Assign n = 0. Write while n < 5: print(n); n += 1.
Starter code
# Count with whileSample solution
n = 0
while n < 5:
print(n)
n += 1Expected output
0 1 2 3 4
Questions and answers
Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.
1 Which is wrong?
- for is a collection loop
- break restarts the loop Correct answer
- while is a condition loop
- continue skips an iteration
Explanation: break ends the loop, it does not restart it.
2 Complete the range step
for i in range(0, 10, ____):
print(i)for i in range(0, 10, 2):
print(i)Explanation: range(0, 10, 2) produces 0, 2, 4, 6, 8.