Round 8.647 to one decimal place.

Question

Sauppypefpg · Accepted Answer

Step 1Suppose you want a number correct to i decimal places. Just look at the   i  +  1 th digit. If its a 5 or greater, round up. If its a 4 or lower, round down.Round down = forget everything after the ith digitRound up = forget everything after the ith digit, and increment the ith digit by 1.For example, if you want 8.647 correct to 1 decimal place, you need to be looking at the digit immediately after the 6. In this case its 4. So you round down. Final answer: 8.6

rhenan5v · Accepted Answer

Step 1To round to either 8.6 or 8.7, compare them with the middle value of both which is 8.65. The question is do you have :  8.647  &amp;lt;  8.65     or     8.647  ≥  8.65In the first case you round down to 8.6, in the second case you round up to 8.7.Same goes with 8.565656, take the middle value of 8.56 and 8.57, which do you have :  8.565656  &amp;lt;  8.565     or     8.565656  ≥  8.565If your problem is comparing decimals, I suggest you have a look at this Khan Academy video which explains it well.

Round 8.647 to one decimal place.

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