The nearest value is that which is represented by itself: no other value can be nearer So the answer is 12.84
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You would follow the rules of rounding. Always look to the place value directly to the right of the place value you wish to round off to. Since we wish to round to the nearest ten-thousands place value, we would look at the thousands place.In the thousands place we have a "7". By the rules of rounding, if it's "5 or more", we must round up. Therefore, 7045 rounded to the nearest ten-thousands place would be 10,000.
nearest cent
The answer depends on the units used for 91.
To round you first need to take only the numbers at place value greater or equal to the place you intend to round to. In this case, 243.37 The next step is to look at the next place value on and figure out if we need to round up or not. If it is a 5, 6, 7, 8 or 9 we need to round up. Otherwise, we can leave the answer as it is. In this case, the next digit is a 5, so we need to round up. Thus 243.3752 when rounded to the nearest hundredth is 243.38
170 is already at the nearest ten. It will round up to 200 to be to the nearest 100.