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Common Core Standards: 2.NBT.7, 2.NBT.8, 2.NBT.9

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.

### New York State Common Core Math Grade 2, Module 5, Lesson 19, Lesson 20

Grade 2, Module 5, Lesson 19 Worksheets (pdf)
Grade 2, Module 5, Lesson 20 Worksheets (pdf)

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 = ______

Lesson 20 Homework

1. Solve each problem using two different strategies.
a. 456 + 244 = _________
b. 698 + ______ = 945

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.  