Question 1210450
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I'll do the first two problems to get you started.


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Problem 1


Place the decimal point just after the 3 to get 3.00 or 3.0 basically.


Now we must move the decimal point 2 spots to the right to go from 3.0 to the original value 300.0
This "move 2 spots to the right" indicates the exponent over the 10 is 2.


Therefore we the answer is {{{3*10^2}}}
You can replace the 3 with 3.0, but it's optional.


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Problem 2


Place the decimal just after the leftmost nonzero digit.


To go from 2.34 back to 0.234, we move the decimal point 1 spot to the left.
This time the exponent is negative since we're moving left.


That's how we arrive at the answer {{{2.34*10^(-1)}}}


You can use a calculator to verify each answer.
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