Math Practice 101
Homework Explained - Math Practice 101

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Grade 3 Go Math Practice - Answer Keys
Common Core


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Use Multiplication Patterns

Essential Question How can you multiply with 10, 100, and 1,000?

UNLOCK the Problem

  • Question 1 (request help)

    Mrs. Goldman ordered 4 boxes of yo-yos for her toy store. Each box had 100 yo-yos. How many yo-yos did Mrs. Goldman order?

    Use a basic fact and a pattern to multiply.

     

    Factors     Products

       4 x 1     = 4

       4 x 10   = 40

       4 x 100 = 400

    Think: Use the basic fact 4 x 1 = 4.                                          Math Idea: As the number of zero in a factor increases,  
              Look for a pattern of zeros.                                                             the number of zero in the product increases.

    So, Mrs. Goldman ordered 400 yo-yos.

Try This!

Use a basic fact and a pattern to find the products.

  • Question 3 (request help)

    B.

    5 x 1 = 5

    5 x 10 = 50
  • 5 x 100 =    
    5 x 1,000 =    

Math Talk

  • Question 4 (request help)

    When multiplying 9 x 1,000, how many zeros will be in the product? Explain
  • 9 x 1,000 =    

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