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Suffix ABLE and IBLE Worksheet

This Suffix ABLE and IBLE Worksheet helps 4th graders add -able or -ible and sort words by their ending across three quick activities. Answer key included — perfect for no-prep phonics and spelling practice.

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About this resource

Description

Learning when to use the suffixes -able and -ible is one of the trickiest spelling skills in the upper elementary grades, and this Suffix ABLE and IBLE Worksheet gives students the focused practice they need. Both endings sound almost exactly the same, so young writers often guess and get them wrong. This worksheet helps fourth graders slow down, look closely at each root word, and choose the correct ending with confidence.

This adding suffixes -able and -ible worksheet is simple to use at school or at home. Students read each sentence, choose the best word from the word bank, and write it on the line. Next, they build new words by adding -able or -ible to a root word, and then finish by sorting a set of words into two columns by their ending. Just print it, hand it out, and let students work independently or with a partner.

What’s Included

  • 1 print-ready PDF worksheet
  • Answer key
  • 3 activities: word-bank fill-in, build-a-word, and word sort (18 practice items)

This Suffix ABLE and IBLE Worksheet helps kids in three important ways. First, the word bank builds vocabulary while reinforcing correct spelling of each tricky word. Second, the build-a-word activity trains students to recognize whether a root is already a complete word, which is a helpful clue for choosing the correct ending. Third, the sorting task turns a confusing rule into a clear visual pattern that students can remember and reuse in their own writing.

Teachers and parents can extend the lesson in plenty of fun ways. Challenge students to hunt for -able and -ible words in a favorite book, keep a running class chart of new words they discover, or play a quick word-sort race against the clock. Ask students to use three of the words in silly sentences, or turn spelling practice into a game of charades using action words like adorable, flexible, and comfortable.

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