Pre- and Un- Prefixes Worksheet
A 2nd grade prefixes worksheet where students choose the correct pre- or un- word from a word bank to complete each sentence. Includes a complete answer key—perfect for quick, no-prep word study practice at home or school.
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About this resource
Description
A prefix is a word part added to the beginning of a base word to change its meaning, and this pre- and un- prefixes worksheet gives second graders focused practice with two of the most common prefixes they will meet. The prefix pre- means “before,” so it turns heat into preheat and view into preview. The prefix un- means “not” or “the opposite of,” so it turns safe into unsafe and tie into untie. Learning these two prefixes helps children unlock the meaning of dozens of new words.
This 2nd grade prefixes worksheet, titled “Prefixes pre- & un-,” gives students a word bank of eight pre- and un- words and eight sentences with a missing word. Children read each sentence, choose the word that best completes it, and write the word on the line. To use it, simply print the page and let students work independently, with a partner, or in a small group. The answer key on page two makes checking fast for teachers and parents.
What’s Included
- 1 print-ready PDF worksheet
- Answer key
- 1 word bank and 8 fill-in-the-blank sentences
There are three big reasons this pre- and un- prefixes worksheet helps kids learn. First, the word bank keeps the task achievable so students focus on meaning instead of spelling, building real confidence with prefixes. Second, the sentences give each prefix word a clear context, so children see how pre- and un- change what a word means in everyday language. Third, the clean layout and included answer key let students work with independence while getting instant feedback, turning mistakes into quick teaching moments.
Teachers and parents can stretch this skill in fun ways beyond the page. Start a prefix word wall and add new pre- and un- words as students discover them in books. Play a quick game where you say a base word and children add a prefix to make a new one. Have students act out opposites like tie and untie, or hunt for prefix words around the house and classroom. Connecting prefixes to reading and everyday talk helps the meaning stick.
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