Let’s solve each sentence one by one, using the list of prefixes provided:
Prefix list:
un-, under-, re-, tele-, im-, de-, sub-, super-, pre-, tri-, auto-, in-, mis-, micro-, over-, uni-, dis-, en-
1. Carson realized it would be ___ possible to fit all of his gear into his small backpack for the camping trip.
→ He couldn’t fit everything → “impossible” is a common word meaning *not possible*. The prefix
im- means *not*. So:
im-possible.
✔ Answer:
im-
2. Brooke felt really ___ happy after she learned she got a bad grade on her test.
→ She felt *not* happy → “unhappy” is the standard word. Prefix
un- = not.
✔ Answer:
un-
3. Stella ___ estimated how much time it would take her to drive to her appointment. She ended up being late!
→ She guessed too little time → underestimated. Prefix
under- = less than needed.
✔ Answer:
under-
4. Antoine assembled a new ___ cycle for his young nephew.
→ A three-wheeled bike is a *tricycle*. Prefix
tri- = three.
✔ Answer:
tri-
5. Tessa made a ___ take. She accidentally threw her homework in the garbage!
→ She had to do it again → *retake*. Prefix
re- = again.
✔ Answer:
re-
6. Lawrence needed to make dinner. He had to take a trip to the ___ market first.
→ A *supermarket* is where you buy groceries. Prefix
super- = above/very large (here, large store).
✔ Answer:
super-
7. Lydia has been working on a big essay. She is almost done. She just has to do a final ___ view.
→ Final check = *review*. Prefix
re- = again. (She’s looking at it again.)
But wait — “review” is correct, but let’s double-check if another prefix fits better.
“Preview” = before viewing — no, she’s almost done.
“Overview” = general summary — possible, but “final review” is more natural.
Yes,
re- is correct.
✔ Answer:
re-
8. Brayden likes to pack snacks when he hikes. He usually packs ___ hydrated fruit.
→ Dried fruit that has had water removed = *dehydrated*. Prefix
de- = remove.
✔ Answer:
de-
9. Jason and Todd had a ___ agreement over whose turn it was to do the dishes.
→ They disagreed → *disagreement*. Prefix
dis- = not/opposite of.
✔ Answer:
dis-
Now double-check all answers against the prefix list to ensure they’re valid options:
- im-
✔
- un-
✔
- under-
✔
- tri-
✔
- re-
✔ (used twice — allowed, unless specified otherwise; the list includes “re-”, and nothing says each prefix can be used only once)
- super-
✔
- de-
✔
- dis-
✔
All are in the given list.
Final Answer:
1. im-
2. un-
3. under-
4. tri-
5. re-
6. super-
7. re-
8. de-
9. dis-
Parent Tip: Review the logic above to help your child master the concept of prefix worksheet 8th grade.
