Educational worksheet for practicing prefixes with a word completion exercise.

Let's solve this worksheet step by step. The goal is to fill in the correct prefix from the Bank of Prefixes to complete each word.

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🔤 Bank of Prefixes:

- de-
- ex-
- im-
- mis-
- pre-
- un-
- dis-
- il-
- in-
- non-
- re-
- with-

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We'll go through each word and determine which prefix makes sense based on meaning and common usage.

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✔ Solutions:

| Word | Prefix | Full Word | Explanation |
|-------------|--------|------------------|-----------|
| ___ fix | re- | refix | "re-" means again; to fix again (same as "repair") |
| ___ sense | dis- | disense? ✘ → Wait, better: mis- or il-? Actually, "insense" isn't valid. But "mis-sense" = incorrect understanding. But more commonly: "in-sense"? Not standard. Actually, "dis-sense" is rare. Let’s reconsider. Wait — "sense" can be preceded by "dis-" → "dis-sense"? Not common. But "mis-sense" is used in biology (e.g., missense mutation). However, "non-sense" is a real word. So likely: non- → nonsense. |
| ___ happy | un- | unhappy | Common antonym of "happy" |
| ___ mind | dis- | dismind? No. "mind" → "pre-mind"? No. "dis-mind" not valid. But "ex-mind"? No. "im-mind"? No. Actually, "pre-mind" doesn’t work. Wait — "dis-mind" is not a word. But "dis-mind" is not standard. What about "pre-mind"? No. Wait — perhaps "dis-" → "disrespect", but that's later. Hmm. Maybe "pre-mind"? Not valid. Wait — maybe "dis-" → "dis-mind" is not correct. But "un-mind"? No. Actually, "de-mind"? No. Perhaps it's "dis-" → "dis-mind" is not a word. Wait — maybe "re-mind"? Yes! "remind" → re- |
| ___ pert | im- | impertinent? → im-pertinent → yes. But here it's just "pert". So "im-pert" → impertinent? But we need to form a word. "im-pert" is not a full word. But "im-" + "pert" → impertinent? No, that's not how it works. Wait — "im-" + "possible"? No. Wait — "im-" + "pertain"? But here it's "pert". Wait — perhaps "dis-" → "dis-pert"? No. "mis-" → "mis-pert"? No. "in-" → "in-pert"? No. Wait — "im-" is often used for negation: "impossible", "impatient", so "impertinent" is formed with "im-" + "pertinent". But here it's just "pert", so likely "im-" → "impertinent"? But the blank is before "pert", so if the full word is "impertinent", then the prefix is im-. But "pert" alone is not a root. Wait — perhaps it's "im-" → "impertinent"? But that's not matching. Alternatively, "mis-" → "mis-pert"? No. Wait — perhaps the intended word is "imperative"? But it's "pert". Hmm.

Wait — let's look at the actual list:

Let me go row by row carefully.

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Row 1:

1. ___ fix → re- → refix (to fix again)
2. ___ sense → non- → nonsense (common word)
3. ___ happy → un- → unhappy

✔ So:
- refix
- nonsense
- unhappy

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Row 2:

4. ___ mind → re- → remind
5. ___ pert → im- → impertinent? But "pert" is short. Wait — "im-" + "pert" → no. But "im-" is used in "impossible", "impatient", "impertinent". So "im-" + "pertinent" = impertinent. But here it's just "pert", so maybe it's "im-" → "impertinent"? But the base word is "pert", so likely it's "im-" → "impertinent"? But that’s not accurate. Wait — perhaps it's "dis-" → "dis-pert"? No. Or "mis-" → "mis-pert"? No. Wait — actually, "im-" is the correct prefix for "impertinent", so even though "pert" is part of it, "im-" is the answer.
6. ___ respect → dis- → disrespect

So:
- remind → re-
- impertinent → im-
- disrespect → dis-

But wait — "im-" is used for "impertinent", yes. But "im-" is also used for "impossible", etc. So okay.

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Row 3:

7. ___ equal → in- → inequal? But "unequal" is more common. "in-" is used in "inequality", but "unequal" uses "un-". Both are acceptable. But "in-" and "un-" both work. So possible answers: in- or un-
8. ___ legal → il- → illegal (standard)
9. ___ fiction → non- → nonfiction (common word)

So:
- unequal or inequal → un- or in-
- illegal → il-
- nonfiction → non-

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Row 4:

10. ___ prove → dis- → disprove
11. ___ frost → de- → defrost
12. ___ ceed → pro-? But "pro-" is not in bank. Wait — "re-" → "receed"? No. "with-" → "withdraw", but not "ceeed". Wait — "proceed" → pro-? Not in bank. Wait — "re-" → "recede"? Yes! "recede" → re-
But "ceeed" is probably "cease"? No, it's "ceed". So "re-" → recede? Yes. But "re-" is in the bank. So:
- disprove → dis-
- defrost → de-
- recede → re-

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Row 5:

13. ___ lucky → un- → unlucky
14. ___ lead → mis- → mislead
15. ___ fat → ex- → ex-fat? No. "overfat"? No. "non-fat"? Yes! "non-fat" → non-
But "ex-fat"? No. "de-fat"? No. "un-fat"? No. But "non-fat" is common. So non-
Alternatively, "ex-" → "ex-fat"? No. So likely non-

So:
- unlucky → un-
- mislead → mis-
- non-fat → non-

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Row 6:

16. ___ fair → un- → unfair
17. ___ gust → pre- → pregust? No. "gust" → "ingust"? No. "out-gust"? No. Wait — "misgust"? No. "disgust" → dis-
Yes! "disgust" → dis-
18. ___ hold → with- → withhold (common word)

So:
- unfair → un-
- disgust → dis-
- withhold → with-

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Row 7:

19. ___ place → re- → replace
20. ___ usual → un- → unusual
21. ___ portant → im- → important? Wait — "im-" → "important"? No — "im-" is not used. Actually, "im-" is not used in "important". It's "im-"? No — "im-" is used in "impossible", but "important" starts with "im-"? Wait — "important" is "im-" + "portant"? Yes! But "im-" is a prefix meaning "not", but "important" is derived from Latin, and "im-" is used there. So "im-" → important? Yes, but "im-" is not always negative in modern English. But in "important", it's "im-". So im-
Wait — actually, "important" comes from Latin *importans*, where *im-* = "in" (into), not "not". So "im-" is not a negative prefix here. But still, the prefix is im-. So im- is acceptable.

But note: "im-" is listed in the bank, so it's allowed.

So:
- replace → re-
- unusual → un-
- important → im-

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Row 8:

22. ___ draw → re- → redraw
23. ___ logical → il- → illogical (yes, "il-" is used for "not" in words like "illegal", "illogical")
24. ___ trieve → re- → retrieve

So:
- redraw → re-
- illogical → il-
- retrieve → re-

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Row 9:

25. ___ visible → in- → invisible (common)
26. ___ play → re- → replay
27. ___ cellent → ex- → excellent (yes!)

So:
- invisible → in-
- replay → re-
- excellent → ex-

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Row 10:

28. ___ view → re- → review
29. ___ code → de- → decode
30. ___ flex → in- → inflexible? But it's "flex". So "inflexible" → in-? But the base is "flex", so "in-" → inflexible? But the word is "flex", so "in-" → inflexible? But we need "inflex" → "inflexible"? Yes, but "inflex" is not a word. But "inflexible" uses "in-". So in-
Alternatively, "de-" → "deflex"? No. "dis-" → "disflex"? No. So likely "in-" → inflexible? But the blank is before "flex", so "in-flex" → inflexible? But that's not quite right. Wait — "inflexible" = in- + flexible, so yes, "in-" is the prefix. So in- is correct.

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✔ Final Answer Grid:

| ___ fix | ___ sense | ___ happy |
|------------|------------|-------------|
| re- | non- | un- |

| ___ mind | ___ pert | ___ respect |
|------------|------------|-------------|
| re- | im- | dis- |

| ___ equal | ___ legal | ___ fiction |
|------------|------------|-------------|
| un- or in- | il- | non- |

| ___ prove | ___ frost | ___ ceed |
|------------|------------|-------------|
| dis- | de- | re- |

| ___ lucky | ___ lead | ___ fat |
|------------|------------|-------------|
| un- | mis- | non- |

| ___ fair | ___ gust | ___ hold |
|------------|------------|-------------|
| un- | dis- | with- |

| ___ place | ___ usual | ___ portant |
|------------|------------|-------------|
| re- | un- | im- |

| ___ draw | ___ logical| ___ retrieve|
|------------|------------|-------------|
| re- | il- | re- |

| ___ visible| ___ play | ___ cellent |
|------------|------------|-------------|
| in- | re- | ex- |

| ___ view | ___ code | ___ flex |
|------------|------------|-------------|
| re- | de- | in- |

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📝 Notes:

- Some words have multiple possible prefixes (e.g., "equal" → un- or in-)
- "im-" is used in "important", "impertinent", even though it may not mean "not" in all cases
- "il-" is used in "illogical", "illegal"
- "re-" appears frequently for "again"
- "dis-" for negation or reversal
- "non-" for "not" (especially in adjectives)
- "with-" only in "withhold"
- "ex-" only in "excellent"
- "de-" in "defrost", "decode"

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✔ Final Answer Key:

| Word | Prefix |
|-------------|--------|
| fix | re- |
| sense | non- |
| happy | un- |
| mind | re- |
| pert | im- |
| respect | dis- |
| equal | un- or in- |
| legal | il- |
| fiction | non- |
| prove | dis- |
| frost | de- |
| ceed | re- |
| lucky | un- |
| lead | mis- |
| fat | non- |
| fair | un- |
| gust | dis- |
| hold | with- |
| place | re- |
| usual | un- |
| portant | im- |
| draw | re- |
| logical | il- |
| retrieve | re- |
| visible | in- |
| play | re- |
| cellent | ex- |
| view | re- |
| code | de- |
| flex | in- |

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This completes the worksheet! Let me know if you'd like a printable version or explanation of any specific prefix.