490,513 = (4 x 1000000) + (9 x 100000) + (0 x 10000) + (0 x 1000) + (5 x 100) + (1 x 10) + (3 x 1)
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0.15 = (0 x 1) + (1/10) + (5/100)
6.009 = (6 x 1) . (0/10) + (0/100) + (9/1000)
0.489 = (0 x 1) + (4/10) + (8/100) + (9/1000)
83 = 512512 in expanded form (notation) is: (5 x 100) + (1 x 10) + (2 x 1)
7.632 = (7 x 1) + (6/10) + (3/100) + (2/1000)