Prefix Practice Worksheet for learning and applying common prefixes in English.

Let’s solve this step by step.

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Part One: Write which word is being described.

We are given definitions and need to find the word that matches each one — specifically, words that start with a prefix (like *re-*, *dis-*, *un-*, etc.) but we’re just writing the full word here.

1. To heat before:
→ “Before” suggests *pre-*
→ Heat + pre = preheat

2. To not like:
→ “Not” suggests *dis-* or *un-*
→ Like + dis = dislike

3. To do the opposite of tie:
→ Opposite of tie = untie
→ So, untie

4. To write again:
→ “Again” suggests *re-*
→ Write + re = rewrite

5. To pay before:
→ “Before” = *pre-*
→ Pay + pre = prepay

6. To do the opposite of pack:
→ Opposite of pack = unpack
→ So, unpack

7. To use again:
→ “Again” = *re-*
→ Use + re = reuse

✔ Part One Answers:
1. preheat
2. dislike
3. untie
4. rewrite
5. prepay
6. unpack
7. reuse

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Part Two: Add a prefix (pre, re, un, dis) to the base word to create a new word.

We’ll go one by one. The prefixes allowed are: *pre-, re-, un-, dis-*

8. ___ play → Think: What prefix makes sense?
→ Replay (play again) → replay

9. ___ honest → Not honest = dishonest → dishonest

10. ___ do → Do again = redo → redo

11. ___ known → Not known = unknown → unknown

12. ___ head → Before head? No. Again head? No. Not head? No. Wait — maybe “ahead”? But “a-” isn’t in our list. Hmm… Actually, “head” can take “over-” but that’s not allowed. Let’s think differently. Maybe it’s “rehang”? No, wait — perhaps it’s “rehead”? That doesn’t make sense. Wait — maybe it’s “unhead”? Also no. Hold on — perhaps it’s “prehead”? Still odd.

Wait — let’s check common words. Actually, “head” can be part of “overhead”, but again, not in our prefix list. Maybe I made a mistake. Let’s skip and come back.

Actually — looking at #12: “___ head” — could it be “rehead”? Not really a word. Or “unhead”? No. Perhaps it’s “prehead”? Not standard.

Wait — maybe it’s “ahead”? But “a-” is not in the allowed prefixes. The instructions say: add *pre, re, un, dis*.

Hold on — perhaps it’s “re-head” as in to put a head on again? Like for a doll? That might be acceptable in context. But let’s see if there’s a better fit.

Alternatively — maybe it’s “dishead”? No. Not a word.

Wait — perhaps I misread. Let me look again.

Actually, let’s consider: maybe it’s “unhead” meaning to remove the head? That’s violent, but technically possible? Not really a common word.

Wait — perhaps it’s “prehead”? Like before the head? Doesn’t make sense.

Hmm. Let’s try another approach. Maybe it’s “replay”, “dishonest”, “redo”, “unknown” — those are solid.

#12: ___ head — perhaps it’s “rehead”? In some contexts, like “rehead a drum” or “rehead a statue”? It’s rare, but possible. Alternatively, maybe it’s a trick and it’s “ahead” — but “a-” isn’t allowed.

Wait — let’s check #13: ___ pay → Repay? Prepay? Dispay? Unpay?

→ Repay (pay back) → repay

#14: ___ fund → Refund? Prefund? Disfund? Unfund?

→ Refund (give money back) → refund

#15: ___ read → Reread? Preread? Disread? Unread?

→ Reread (read again) → reread

#16: ___ true → Untrue? Distrue? Retru? Pretrue?

→ Untrue (not true) → untrue

#17: ___ use → Reuse? Preuse? Disuse? Unuse?

→ Reuse (use again) OR Disuse (stop using) — both valid. But since “reuse” was used in Part One, maybe they want “disuse”? But let’s see context.

Actually, “disuse” means to stop using something. “Reuse” means to use again. Both are correct depending on intent. But since the instruction is just “add a prefix”, either could work. However, “reuse” is more commonly taught at this level. But wait — in Part One, #7 was “to use again” = reuse. So maybe here they want a different one? Or maybe it’s okay to repeat?

But let’s assume we can use any valid prefix. For #17, “reuse” is fine. But let’s hold.

#18: ___ obey → Disobey? Unobey? Reobey? Preobey?

→ Disobey (not obey) → disobey

#19: ___ school → Preschool? Reschool? Unschool? Disschool?

→ Preschool (before school age) → preschool

#20: ___ change → Rechange? Prechange? Unchange? Dischange?

→ Rechange? Not common. Change again? Usually “re-change” but not standard. “Unchange” = not change? Not a word. “Dischange”? No.

Wait — “change” can take “re-” as in “recharge” but that’s charge, not change.

Actually, “rechange” is not standard. Perhaps “unchange” is not a word. Wait — what about “exchange”? But “ex-” isn’t allowed.

Hold on — maybe it’s “rechange”? Not really. Perhaps it’s “prechange”? No.

Wait — actually, “change” can be prefixed with “re-” in some contexts, like “rechange clothes” — but it’s awkward. More commonly, we say “change again”.

Perhaps it’s “unchangeable” — but that’s an adjective, and the base is “change”.

Wait — maybe it’s “dischange”? Not a word.

This is tricky. Let’s think: perhaps it’s “rechange” — even if uncommon, it might be accepted. Or maybe I missed something.

Another idea: “change” → “re-change” as in to change again? Yes, sometimes used. So rechange? But let’s verify.

Actually, upon second thought, “rechange” is not standard English. The correct word might be “exchange”, but “ex-” isn’t in the list.

Wait — perhaps it’s “unchange”? Meaning to make unchanged? Not really.

Let’s look at #21: ___ agree → Disagree? Unagree? Reagree? Preeagree?

→ Disagree (not agree) → disagree

So back to #20: ___ change

Perhaps it’s “rechange” — but I think there’s a better option. Wait — what about “prechange”? No.

Actually, let’s consider: maybe it’s “unchange” — but that’s not a verb. The base word is “change”, which is a verb.

Another thought: “change” can be prefixed with “re-” to mean “to change again”, even if it’s not super common. In educational worksheets, they might accept rechange.

But let’s double-check online or common usage — since I’m simulating, I’ll go with logic.

Wait — perhaps it’s “dischange”? No.

I recall that “change” doesn’t commonly take these prefixes except in specific cases. But let’s look at #12 again: ___ head

Maybe #12 is “rehead” and #20 is “rechange” — even if rare.

But let’s try a different angle. For #12: “___ head” — could it be “unhead”? As in to decapitate? That’s dark, but technically a word? Not really.

Wait — perhaps it’s “ahead” — but “a-” not allowed.

Another idea: maybe “head” is meant to be “lead”? No, it says “head”.

Let’s list all possibilities:

Allowed prefixes: pre, re, un, dis

For “head”:
- prehead? No
- rehead? Possible in technical contexts (e.g., rehead a nail, rehead a statue)
- unhead? Not standard
- dishead? No

Similarly for “change”:
- prechange? No
- rechange? Sometimes used informally
- unchange? Not a verb
- dischange? No

Perhaps the worksheet expects:

#12: rehead
#20: rechange

But let’s see if there’s a better fit for #20. What about “exchange”? But “ex-” not allowed.

Wait — another thought: “change” can be “recharged” but that’s charge.

Perhaps it’s “unchangeable” — but again, not matching the base verb.

I think for the purpose of this worksheet, we’ll go with:

#12: rehead (assuming it's acceptable)
#20: rechange (same)

But let’s check #17: ___ use

We have “reuse” and “disuse”. Since “reuse” was used in Part One, maybe they want “disuse” here? But the instruction doesn’t prohibit repetition.

To be safe, let’s use “reuse” for #17, as it’s very common.

Now, let’s finalize:

8. replay
9. dishonest
10. redo
11. unknown
12. rehead *(less common, but fits)*
13. repay
14. refund
15. reread
16. untrue
17. reuse
18. disobey
19. preschool
20. rechange *(awkward, but only option)*
21. disagree

Wait — for #20, is there a better word? What about “prechange”? No.

Actually, I recall that “change” can be prefixed with “re-” in the context of “rechange batteries” or something, but it’s not standard. Perhaps the intended answer is “rechange”.

But let’s think: maybe it’s “unchange” — but that’s not a verb. The base is “change”, so we need a verb.

Another idea: “dischange” — no.

Perhaps it’s a typo, and it’s supposed to be “charge” — then “recharge” would make sense. But it says “change”.

Given the constraints, I’ll go with rechange for #20.

Similarly, for #12, rehead is the best available.

But let’s verify #12: in some contexts, “rehead” is used, e.g., “rehead a cabbage” (remove old leaves), or “rehead a pin”. So it’s plausible.

Finalizing Part Two:

8. replay
9. dishonest
10. redo
11. unknown
12. rehead
13. repay
14. refund
15. reread
16. untrue
17. reuse
18. disobey
19. preschool
20. rechange
21. disagree

Wait — for #17, if we use “reuse”, and in Part One #7 was also “reuse”, is that okay? Probably yes, since it’s a different section.

But let’s see if “disuse” is better for #17. “Disuse” means to cease using, which is also valid. But “reuse” is more positive and common. I’ll stick with “reuse”.

Now, let’s write the final answers clearly.

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Final Answer:
Part One:
1. preheat
2. dislike
3. untie
4. rewrite
5. prepay
6. unpack
7. reuse

Part Two:
8. replay
9. dishonest
10. redo
11. unknown
12. rehead
13. repay
14. refund
15. reread
16. untrue
17. reuse
18. disobey
19. preschool
20. rechange
21. disagree