Math Practice 101
Homework Explained - Math Practice 101

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Grade 3 Go Math Practice - Answer Keys
Area of Combined Rectangles


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Lesson Check

  • Question 1 (request help)

    The diagram shows Ben’s backyard. Each unit square is 1 square yard. What is the area of Ben’s backyard?
    • 12 square yards
    • 16 square yards
    • 18 square yards
    • 24 square yards
  • Question 2 (request help)

    The diagram shows a room in an art gallery. Each unit square is 1 square meter. What is the area of the room?
    • 24 square meters
    • 30 square meters
    • 36 square meters
    • 40 square meters

Spiral Review

  • Question 3 (request help)

    Naomi needs to solve \(28\div7=\blacksquare\). What related multiplication fact can she use to find the unknown number?
    • \(3\times7=21\)
    • \(4\times7=28\)
    • \(5\times7=35\)
    • \(6\times7=42\)
  • Question 4 (request help)

    Karen drew a triangle with side lengths 3 centimeters, 4 centimeters, and 5 centimeters. What is the perimeter of the triangle?
    • 7 centimeters
    • 9 centimeters
    • 11 centimeters
    • 12 centimeters
  • Question 5 (request help)

    The rectangle is divided into equal parts. What is the name of the equal parts?
    • half
    • third
    • fourth
    • sixth
  • Question 6 (request help)

    Use an inch ruler. To the nearest half inch, how long is this line segment?
    • \(\large 1\)
    • \(\large 1\frac{1}{2}\)
    • \(\large 2\)
    • \(\large2 \frac{1}{2}\)

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