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Simple or Compound? is a free printable Grade 3 English worksheet on telling one complete thought from two joined ones, aligned to Common Core standard L.3.1. It prints 3 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 25 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Simple or Compound?

L.3.1

NameDate

Sort each sentence into the right column.

1.Sort each one: Simple sentence or Compound sentence?

Sort: The moon rose over the hill., Our teacher read us a story., You can draw a picture, or you can write a poem., Grandpa fixed the old clock., The store was closed, so we went home., We could bake a cake, or we could make pancakes.

Simple sentenceCompound sentence
2.Sort each one: Simple sentence or Compound sentence?

Sort: A bird built a nest in the hedge., The bread rose, and Dad sliced it., The bell rang, and the children lined up., My sister plays the violin., The dog barked, and the cat ran away., We ate lunch under the tree.

Simple sentenceCompound sentence
3.Sort each one: Simple sentence or Compound sentence?

Sort: The path was icy, but nobody fell., Leo likes apples, but his brother likes pears., The puppy chewed my sock., The train left the station., The bread rose in the oven., The sun came out, so we went to the park.

Simple sentenceCompound sentence

LessonPrint · L.3.1 · Set 25 · free to copy for classroom use

Answer key — Simple or Compound?

Set 25. Prints on its own sheet.

  1. 1.1. Grandpa fixed the old clock. — Simple sentence 2. Our teacher read us a story. — Simple sentence 3. The moon rose over the hill. — Simple sentence 4. The store was closed, so we went home. — Compound sentence 5. We could bake a cake, or we could make pancakes. — Compound sentence 6. You can draw a picture, or you can write a poem. — Compound sentence
  2. 2.1. A bird built a nest in the hedge. — Simple sentence 2. My sister plays the violin. — Simple sentence 3. The bell rang, and the children lined up. — Compound sentence 4. The bread rose, and Dad sliced it. — Compound sentence 5. The dog barked, and the cat ran away. — Compound sentence 6. We ate lunch under the tree. — Simple sentence
  3. 3.1. Leo likes apples, but his brother likes pears. — Compound sentence 2. The bread rose in the oven. — Simple sentence 3. The path was icy, but nobody fell. — Compound sentence 4. The puppy chewed my sock. — Simple sentence 5. The sun came out, so we went to the park. — Compound sentence 6. The train left the station. — Simple sentence

Last reviewed 2026-09-05. Aligned to L.3.1 of the Common Core State Standards for English Language Arts.