Solution to

Frame 3-27.

used rules to round to the nearest place (nearest hundredth, nearest

whole number, etc.). The basic theory is that sometimes you round up

No problem was given in

and sometimes you round down, but in the end it balances out.

this frame.

Some organizations, however, may use different rules. For example,

suppose you are rounding off the weights of individual products to the

nearest pound, then adding the weights together to determine the total

weight of the shipment. One organization may not care if the estimated

weight is more than the actual total weight, but will be very upset if the

estimate is below the actual weight. In such a case, you may be told to

round up at all times to prevent an underestimate. Likewise, you may be

told to always round down by an organization that must make sure that

the actual weight is not under your estimate.

Some other organizations may use modified rules of rounding. Refer

back to Frame 3-23. Suppose that the amount you wished to round to

the nearest cent (

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.01) had been exactly in the middle (0.50).
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.49
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.4925
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.4950
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.4975
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.50∇

∇

♦

∇

∇

According to our rules of rounding, you would always round half-cents up

to the next penny. But suppose you knew that you would have a lot of

halfs (say a lot of half pounds in the above example). You might want a

system to round the halfs up sometimes and round them down

sometimes. One such rule is the "engineer's rule of rounding." When

using this modified rule of rounding, if the digit(s) to the right of the digit

to be rounded is "5" or "50", you round down if the digit to be rounded is

even (0, 2, 4, 6, or 8) and round up if the digit is odd (1, 3, 5, 7, or 9).

For example, 2 1/2 (2.5) pounds rounded to the nearest pound would

round to 2 pounds (the 2 is even). 3 1/2 (3.5) pounds, however, would

round to 4 pounds (the 3 is odd).

If you used the engineer's rule of rounding given above to round

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.4950to the nearest penny, the results would be (chose one --

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.49
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.50).NOTE: The information presented in this frame was for your information.

In this subcourse, you will only be tested on the rounding rules given in

Frame 3-25 and not on any system of rounding presented in this frame.

NOTE: Do not use any of the rules of rounding presented in this frame

unless specifically told to do so.

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MD0900

3-16

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