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Question 624179: what is the rounding off numbers of 139,999 in the nearest tens,nearest hundreds,nearest thousands,ten thousands,and hundred thousands?
Answer by kevwill(135)   (Show Source):
You can put this solution on YOUR website! To round a number to a specific position, we look at that position and the position to the right. If the digit in the position to the right is 5 or higher, we add one to the position we're interested in and replace everything to the right with zero.
To round 139,999 to the nearest tens, we look at the tens position and the ones position. The digit in the ones position is 9 so we add one to the 9 in the tens position and replace everything to the right with zero. However, adding 1 to the 9 in the tens position results in carrying through the hundreds and thousands position, giving us 140,000.
Likewise, to round to hundreds, we look at the hundreds and tens positions. There is a 9 in the tens position so we add one to the hundreds position and replace everything to the right with zero. Again, we have to carry through the thousands position, and the answer again is 140,000.
Likewise, to round to thousands, we look at the thousands and hundreds positions. There is a 9 in the hundreds position so we add one to the thousands position and replace everything to the right with zero. Again, we have to carry through, and the answer again is 140,000.
Likewise, to round to ten thousands, we look at the ten thousands and thousands positions. There is a 9 in the thousands position so we add one to the 3 in the ten thousands position and replace everything to the right with zero, and the answer again is 140,000.
Finally, to round to hundred thousands, we look at the hundred thousands and ten thousands positions. There is a 3 in the ten thousands position so we don't increase the 1 in the hundred thousands position, Just replace everything to the right with zero, and the answer again is 100,000.
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