They could be written as 68.00 and 10.00
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It is: 68/10 = 6.8
Note that 68 is same as 68.0. Move a decimal place to the left to obtain exponent of base 10 as 1. Therefore, 68 in Scientific Notation is 6.8 x 101
68/1000 = 68 ÷ 1000 = 0.068
To write 28 10 as a decimal, you divide 28 by 10. The quotient is 2.8, so 28 10 expressed as a decimal is 2.8.
As a fraction, you can write it as 8/10. As a decimal, you can write it as 0.8.