Unit 1, Lesson 30

Solve add to with change unknown math stories with drawings, relating addition and subtraction.

EngageNY 60 min(s)Support for English Language Learners
In this lesson, students solve "add to with change unknown" word problems and discuss the connection between addition and subtraction. For example, when solving the problem "There were 5 books on a shelf. A student came and put some more books on the shelf. Now there are 7 books on the shelf. How many books did the student bring?" students write the number sentences 5 + ___ = 7 and 7 - 5 = ___ and use strategies like counting on to solve.

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