Simplicity
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Irvine, California, United States
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Addition and Subtraction Under 20
40 Addition and Subtraction problems (20 of each) Common Core aligned pages that address the standards found in the Operations & Algebraic Thinking portion of the First Grade Curriculum. Also a great homeschooling & homework resource! May also be used for struggling second graders who need more targeted instruction!
Students solve for the unknown variable and either circle or color in the correct choice.
Students add and subtract within 20.
1st
Algebra, Math, Mental Math
CCSS
1.OA.A.1
, 1.OA.D.8
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About the store
My own education history
Master of Arts in Education,
Bachelor of Arts in Psychology
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