Videos, examples, solutions, and lessons to help Grade 3 students learn how to apply the distributive and commutative properties to relate multiplication facts 5 × n + n to 6 × n and n × 6 where n is the size of the unit.
Common Core Standards: 3.OA.4, 3.OA.5, 3.OA.7, 3.OA.9, 3.OA.1, 3.OA.2, 3.OA.3, 3.OA.6
New York State Common Core Math Grade 3, Module 3, Lesson 2
Download Worksheet for Common Core Grade 3, Module 3, Lesson 2
Jocelyn says 7 fives has the same answer as 3 sevens + 2 sevens.
Is she correct? Explain why or why not.
Note: This problem reviews the commutative property from Lesson 1, and also previews the first fact used in the Concept Development to ensure all students’ automaticity with the answer.
What are 5 sevens, 5 × 7, and 7 × 5 all equal to? 35.
Compare 5 × 7 and 6 × 7. What is the difference between them?
6 × 7 has one more group of 7 than 5 × 7.
Lesson 2 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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