Addition and Subtraction Strategies
Free math video lessons with examples and worked solutions to help to help Grade 2 students learn how to choose and explain solution strategies and record with a written addition or subtraction method.
Common Core Standards: 2.NBT.7, 2.NBT.8, 2.NBT.9
New York State Common Core Math Module 5, Grade 2, Lesson 19, Lesson 20
Topic C: Strategies for Decomposing Tens and Hundreds Within 1,000
NYS Math Module 5 Grade 2 Lesson 19
Lesson 19 Homework
1. Solve and explain why you chose that strategy.
c. 519 + 342 = ______
f. 904 – 395 = ______
1. Solve each problem using two different strategies.
a. 456 + 244 = _________
b. 698 + ______ = 945
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.
