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Home > MC1 > Chapter 3 > Lesson 3.3.2 > Problem 3-73

3-73.
  1. 3-73. Draw a generic rectangle to help you calculate each product. Homework Help ✎

    For each part, write: (total dimension)(total dimension) = sum of individual area parts = total area. For example, the diagram at right shows that (12)(27) = 200 + 40 + 70 +14 = 324.

    1. (73)(42)

    2. 125 · 81

Think back to the way you solved the generic rectangles in class.
The labels have been added to help you remember.

Part of the rectangle has been filled in for you.

This one is solved just like the one above.
Remember to add a hundreds place column.