The area of Alaska is five hundred eightysix thousand four h

The area of Alaska is five hundred eighty-six thousand, four hundred square miles. The area of the Philippine Islands is one hundred fourteen thousand, four hundred square miles. By how many square miles does the area of Alaska exceed that of the Philippine Islands ?...

Solution

9)

(586400 - 114400) = 472000

10)

(1652665 + 1449607 + 1231675) = 4333947

11)

(248709873 - 226545805) = 22164068