Prefix Addition - Printable Vocabulary Worksheet - Free Printable

Let's solve this step-by-step. The task is to choose a suitable prefix from the given word bank and combine it with the base word to form a meaningful new word.

Word Bank:

- dis
- non
- un
- in
- pre
- tri

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We'll go through each question one by one:

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1. ______ + heat = ________

- Think of words related to "heat".
- "Dis" + "heat" → disheat? Not a real word.
- "Un" + "heat" → unheat? No.
- "In" + "heat" → inheat? No.
- "Pre" + "heat" → preheat ✔ Yes! This is a common word meaning to heat something before cooking.

✔ Answer: pre + heat = preheat

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2. ______ + cycle = ________

- "Dis" + "cycle" → discycle? No.
- "Non" + "cycle" → noncycle? Not common.
- "Un" + "cycle" → uncycle? No.
- "In" + "cycle" → incycle? No.
- "Pre" + "cycle" → precycle? Not standard.
- "Tri" + "cycle" → tricycle ✔ Yes! A three-wheeled vehicle.

✔ Answer: tri + cycle = tricycle

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3. ______ + visible = ________

- "Dis" + "visible" → disvisible? No.
- "Non" + "visible" → nonvisible? Close, but not commonly used.
- "Un" + "visible" → invisible ✔ Yes! Means not able to be seen.

✔ Answer: un + visible = invisible

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4. ______ + stick = ________

- "Dis" + "stick" → disstick? No.
- "Non" + "stick" → nonstick ✔ Yes! As in "nonstick pan".

✔ Answer: non + stick = nonstick

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5. ______ + continue = ________

- "Dis" + "continue" → discontinue ✔ Yes! To stop doing or using something.

✔ Answer: dis + continue = discontinue

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6. ______ + lock = ________

- "Dis" + "lock" → dislock? No.
- "Non" + "lock" → nonlock? No.
- "Un" + "lock" → unlock ✔ Yes! To open a lock.

✔ Answer: un + lock = unlock

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Final Answers:

1. pre + heat = preheat
2. tri + cycle = tricycle
3. un + visible = invisible
4. non + stick = nonstick
5. dis + continue = discontinue
6. un + lock = unlock

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✔ All answers are valid English words formed using prefixes from the word bank.