Math Practice 101
Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys
Common Core


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Multiply 3-Digit and 4-Digit Numbers with Regrouping

Estimate. Then find the product.

  • Question 2 (request help)

               5,339
             x       6
  • Estimate:   
    Product:   
  • Question 3 (request help)

                $879
             x       8
  • Estimate: $   
    Product: $   
  • Question 4 (request help)

               3,182
             x       5
  • Estimate:   
    Product:   
  • Question 5 (request help)

               4,616
             x       3
  • Estimate:   
    Product:   
  • Question 6 (request help)

                 2,854
               x       9
  • Estimate: $   
    Product: $   
  • Question 7 (request help)

               7,500
             x       2
  • Estimate:   
    Product:   
  • Question 8 (request help)

                 948
             x      7
  • Estimate:   
    Product:   
  • Question 9 (request help)

               1,752
             x       6
  • Estimate:   
    Product:   
  • Question 10 (request help)

                 550
             x      9
  • Estimate:   
    Product:   
  • Question 11 (request help)

               6,839
             x       4
  • Estimate:   
    Product:   
  • Question 12 (request help)

               $9,614
             x        3
  • Estimate: $   
    Product: $   

Problem Solving

  • Question 13 (request help)

    Lafayette County has a population of 7,022 people. Columbia County’s population is 8 times as great as Lafayette County’s population. What is the population of Columbia County?
  •    people
  • Question 14 (request help)

    A seafood company sold 9,125 pounds of fish last month. If 6 seafood companies sold the same amount of fish, how much fish did the 6 companies sell last month in all?
  •    pounds

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