Math Practice 101
Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys
Common Core - New


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Find Unknown Measures

Find the unknown measure of the rectangle.

  • Question 1 (request help)

    Perimeter = 54 feet                                       
    width =    7 feet      

      

    Think: P = (2 x l) + (2 x w)
             54 = (2 x 20) + (2 x w)
             54 = 40 + (2 x w)
    Since 54 = 40 + 14, 2 x w = 14, and w = 7.

     
  • Question 3 (request help)

    Area = 28 square centimeters
  • height =    centimeters

Problem Solving

  • Question 5 (request help)

    Susie is an organic vegetable grower. The perimeter of her rectangular vegetable garden is 72 yards. The width of the vegetable garden is 9 yards. How long is the vegetable garden?
  • length =   yards
  • Question 6 (request help)

    An artist is creating a rectangular mural for the Northfield Community Center. The mural is 7 feet tall and has an area of 84 square feet. What is the length of
    the mural?
  • length =   feet

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