Arithmetic: Place value addition

450,080 = 400,000 + ____ + 80

____ + 70,000 + 600 = 1,070,600

800,000 + 4,000 + ____ = 804,002

6,300,010 = ____ + 300,000 + 10

4,090,030 = 4,000,000 + 90,000 + ____

200,000 + ____ + 80 = 230,080

4,400,040 = ____ + 400,000 + 40

170,400 = 100,000 + ____ + 400

300,000 + 6,000 + ____ = 306,005

7,000,000 + ____ + 300 = 7,900,300