# Result Unknown Story Problems for Differentiation - 1st grade Common Core

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12 MB|28 pages
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These story problems were created to be used for differentiating with in kindergarten, first grade, and second grade classrooms. They are based on authentic experiences of students. I have left the numbers in the majority of the story problems blank so that the teacher can help students comprehend the story problem (word problem) first and then they can fill in the numbers according to the ability level of each student or group of students.

These could be used as a station in a math workshop, as work for guided groups, as homework or as assessments.

I will post them in Spanish with in the next several days.

Common Core standards:

1.OA.1- Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

1.OA.2- Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

1.OA.8- Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.
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28 pages
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