lesson
Strip Diagrams for Two-Step Addition and Subtraction Problems
Use strip diagrams to represent and solve two-step addition and subtraction problems within 1,000.

Use strip diagrams to represent and solve two-step addition and subtraction problems within 1,000.
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7 lessons
Add and subtract within 1,000 using place value strategies, solve two-step word problems, and apply these skills to count money, solve money word problems, and make change.
solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction;
create and use representations to organize, record, and communicate mathematical ideas;