Unit 2, Lesson 14# Model subtraction of 9 from teen numbers.

EngageNY 60 min(s)

In this lesson, students use linking cubes and drawings to compare strategies for subtraction. First, they take 9 from 12 by subtracting 2, and then 7 more. Then they use the "take from ten" strategy to quickly subtract 9 from 10, and add the 1 and the 2. Finally, they practice taking 9 from whole numbers 11-19.