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Educational worksheet for identifying prefixes, root words, and suffixes in English vocabulary.

Worksheet titled "Prefixes, Root Words, Suffixes" with a table for students to identify parts of words like "tallest," "unhappy," and "underground."

Worksheet titled "Prefixes, Root Words, Suffixes" with a table for students to identify parts of words like "tallest," "unhappy," and "underground."

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Show Answer Key & Explanations Step-by-step solution for: prefix suffix root word online exercise for
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Absolutely! Let’s solve this worksheet step by step.

The goal is to break each word into its prefix, root word, and suffix. Not every word will have all three parts — some may only have a prefix and root, or root and suffix, or just a root.

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✔ Key Definitions:


- Prefix: A group of letters added to the beginning of a word that changes its meaning (e.g., “un-”, “pre-”, “dis-”).
- Root Word: The core part of the word that carries the main meaning (e.g., “happy”, “appear”, “grate”).
- Suffix: A group of letters added to the end of a word that can change its meaning or grammatical function (e.g., “-est”, “-er”, “-less”).

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📝 Let’s fill in the table:



| Word | PREFIX | ROOT WORD | SUFFIX |
|--------------|------------|-------------|------------|
| tallest | | tall | est |
| unhappy | un | happy | |
| preschool | pre | school | |
| disappear | dis | appear | |
| younger | | young | er |
| become | | become | |
| misspoke | mis | spoke | |
| ungrateful | un | grateful | |
| replay | re | play | |
| worthless | | worth | less |
| underground | under | ground | |

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💡 Explanations for Each Word:



1. tallest → *tall* (root) + *-est* (suffix meaning “most”). No prefix.
2. unhappy → *un-* (prefix meaning “not”) + *happy* (root). No suffix.
3. preschool → *pre-* (prefix meaning “before”) + *school* (root). No suffix.
4. disappear → *dis-* (prefix meaning “not” or “away”) + *appear* (root). No suffix.
5. younger → *young* (root) + *-er* (suffix meaning “more”). No prefix.
6. become → This is a single root word. No prefix or suffix.
7. misspoke → *mis-* (prefix meaning “wrongly”) + *spoke* (root — past tense of “speak”). No suffix.
8. ungrateful → *un-* (prefix meaning “not”) + *grateful* (root). No suffix.
9. replay → *re-* (prefix meaning “again”) + *play* (root). No suffix.
10. worthless → *worth* (root) + *-less* (suffix meaning “without”). No prefix.
11. underground → *under-* (prefix meaning “below”) + *ground* (root). No suffix.

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✔ Final Answer Table:

| Word | PREFIX | ROOT WORD | SUFFIX |
|--------------|------------|-------------|------------|
| tallest | | tall | est |
| unhappy | un | happy | |
| preschool | pre | school | |
| disappear | dis | appear | |
| younger | | young | er |
| become | | become | |
| misspoke | mis | spoke | |
| ungrateful | un | grateful | |
| replay | re | play | |
| worthless | | worth | less |
| underground | under | ground | |

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📌 Tip for Students: Always look for common prefixes (un-, re-, pre-, dis-, mis-, under-) and suffixes (-er, -est, -less, -ful, -ing, -ed). The root is what’s left after removing those!

Let me know if you’d like a printable version or flashcards for these words! 😊
Parent Tip: Review the logic above to help your child master the concept of prefixes and root words worksheet.
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