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8 questions with a Dinosaurs theme plus a full answer key. Perfect for Grade 1 Math.
⬇ Download WorksheetStudents will be able to solve addition word problems within 20 using dinosaur-themed scenarios.
Before Q6, pause and ask students to predict how many fossil bones Maya has found so far by adding answers from Q1 and Q3 — this previews cumulative thinking and rewards students who tracked the story.
...plus 5 more questions in the full worksheet
Instructions: Read each question about Maya. Write the answer and show your work.
Standard: 1.OA.A.1
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This printable Math worksheet is designed for Grade 1 students and covers Addition. The Dinosaurs theme keeps kids engaged while they practice essential Math skills. Every worksheet includes a full answer key making it easy for parents and teachers to check work instantly. Aligned to Common Core State Standards (CCSS) for Grade 1 Math. Print-ready at US Letter size. No login required — download and print in seconds.
Last updated: April 2026
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