When rounding a decimal to the nearest hundredth, examine the digit in the thousandths place: if it is 5 or greater, round up the hundredths digit; if less than 5, keep the hundredths digit unchanged. To find the difference between the rounded value and the original, subtract the original from the rounded value, aligning decimal places and subtracting digit by digit. For example, with d = 2.0453, rounding to the nearest hundredth gives d* = 2.05, and d* - d = 2.05 - 2.0453 = 0.0047.
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Tricky Rounding plus Digits vs. Decimals #GMAT #GRE #MBA #MiM追加:
So in this case you're looking at so D is 2.0453 and D's D star is the decimal obtained by rounding D to the nearest hundredth.
Okay, so that's going to be so your D star nearest hundredth is the second position there, right? So your D star is going to be 2.05. So 2.05 minus 2.0453. That's going to be a positive number. So A A and B are out already.
Then really you're just worried about so you know if that's 0 0 and you're going to subtract that's 2.0453.
The difference between 500 and 453 is just 47, right? So your answer is D.
So if you like this,
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