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Mrs. Farias
Strip Diagram Strategy to Add
Grades:
2nd Grade
Subjects:
Math
Standards:
Add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations. (Math.2.4(B))
Student Instructions
Decide which number is closer to its next 10.
Then subtract that difference from the other addend.
Put both parts together to find the sum.
Teacher Notes (not visible to students)
Supplement Activity for Eureka/Bluebonnet Math Module 4, Lesson 4.
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