Unit 1, Lesson 14# Use place value understanding to decompose to smaller units up to three times using the standard subtraction algorithm, and apply the algorithm to solve word problems using tape diagrams

EngageNY 60 min(s)

In this lesson, students subtract multi-digit numbers using the standard algorithm beginning with subtraction that requires two decompositions and progress to subtraction that requires three decompositions. Students use tape diagrams to represent the part-whole relationship and the unknown, and then apply the use of tape diagrams to model a subtraction word problem.