5, Lesson 13, Unit 1, Grade 4, EngageNY icon
Problem Set

Problem Set

Lesson 13. Unit 1. Grade 4 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 13, Unit 1, Grade 4. In this lesson, students extend their understanding of the standard algorithm for subtraction to multi-digit numbers requiring one decomposition. They begin pictorially using place value disks and a place value chart to model one decomposition to a smaller unit and work toward an abstract use of the algorithm, including in the context of a word problem. They use tape diagrams to model the part-whole relationship of the subtraction problem and to reflect on how the numbers are related.

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