Common Core Math Resources, Lesson Plans & Worksheets for all grades
Common Core Math Lessons, Math Worksheets and Games for Grade 2
Common Core Math Lessons, Math Worksheets and Games for all grades
Examples and solutions to help Grade 2 students learn how to use manipulatives to represent additions with two compositions.
Common Core Standards: 2.NBT.6, 2.NBT.7, 2.NBT.8, 2.NBT.9
Problem 1: 40 + 70
Problem 2: 49 + 73
Problem 3: 136 + 64
Hailey and Gio solve 56 + 85. Gio says the answer is 131. Hailey says the answer is 141. Explain whose answer is correct using numbers, pictures, or words.
Lesson 18 Homework
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.
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