680
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68 = (6 x 10^1) + (8 x 10^0)
6.8 x 10 = 68
68 billion in scientific notation is written as 6.8 x 10^10.
There are 10 hectograms in one kilogram. Therefore, 68 kilograms is equal to 68 x 10 = 680 hectograms.
no 68 inches is 2 inches less 5 x 12 = 60 60 + 10 = 70 = 68 + 2