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Strip Diagrams Strategy to Subtract

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

flexcard Think how many more you need to make the next ten with the smaller number. frame-label Add those numbers together. Add that same difference to make ten to the larger number. Subtract the new simplified numbers to find the difference.

Teacher Notes (not visible to students)

Supplement Activity for Eureka/Bluebonnet Math Module 4, Lesson 4.

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Strip Diagrams Strategy to Subtract

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