These addition and subtraction word problems worksheets give parents and teachers focused, repeatable practice for 1st Grade learners. Model and solve result-unknown, change-unknown, and comparison situations within 20. Choose a fixed-seed sample or make a fresh printable without creating an account.
Open a sample to preview all questions, make a fresh version, or download the worksheet and answer key.
Problem: Riley has 19 stickers and gives away 9. How many stickers remain?
Answer: 10
Strategy: Underline what is known, state what is being asked, and write one equation for each required step. This example supports the page objective: Model and solve result-unknown, change-unknown, and comparison situations within 20.
Begin with the easy setting when the strategy is new, use standard for independent practice, and reserve challenge for a learner who can explain the method accurately.
Use the answer key to find a pattern, then ask the learner to explain one corrected example rather than repeating an entire set immediately.
Alignment labels identify the primary skill practiced. A worksheet is supplemental practice and does not assess every part of a standard.
Model and solve result-unknown, change-unknown, and comparison situations within 20.
Start with one untimed set, review the learner's strategy, and use the answer key to discuss errors. Generate a new fixed-seed set only after the current skill is understood.
Yes. The free PDF can include an appended answer key, or the answer key can be downloaded separately for adult use.
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Automated QA passed · Updated 2026-07-15
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