I am a number between 1 and 10 .My tenths digit is 1 less than my ones digit,my hundredths digit is sum of my ones and tenths digit, my thousandths digit is 1 more than my hundredths digit.What number can i be?
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You need more information to round to the nearest tenth, you need the hundredths column.
For example, if the number was 6.54, we look at the number beside the tenth column, the hundredths column. If it is 4 or less, we round down and don't add one to the tenths column and the result is 6.5.
However, if the number was 6.55, the number beside the tenths column is 5 or greater, we add 1 to the tenths column and get 6.6.
As an example, let divide 15 by 17. I get 0.882352841.
To round to the nearest hundredth, we have to find the hundredths column, look to the digit to the right. If it is 5 or over, we add 1 to the hundredths column, otherwise we don't need to add one to the hundredths column.
I don't know if my spacing on identifying the columns will be retained, so the tenths column is the first one to the right of the decimal. There is an 8 in the tenths column. The next column to the right is the hundredths column. There is an 8 in the hundredths column. In the column to the right of this, we have a 2, so we don't have to add one to the hundredths column. I get 0.88.
Assuming you do mean to the nearest hundred, answer the question 'is this number closer to 5400 or 5500?' It is closer to 5400 (The first digit to the left of the decimal point is 'ones', the second place is 'tens', the third place is 'hundreds', so you look at the third digit to the left to round to the nearest hundred)
If, in fact, you meant hundredth, answer the question 'is it closer to 5403.26 or 5403.27?' It is closer to 5403.26 (The first digit to the right of the decimal point is 'tenths', the second digit is 'hundredths', so you look at the second digit to the right to round to the nearest hundredth)
You should have added a comment to your first question.
Here is the explanation, Your numbers are
28. 79, 65.91, 79.88, 926.7
Let look at the 9-digits
28.79 : 8 occupies the units-position, 2 the tens position, 7 the tenths position, and 9 the hundredths position. Do not confuse the cardinal numbers (ten, hundred, thousand,...) with the ordinal numbers used to express the positions in the decimal part , such as tenths, thousandths, etc.
For the other numbers the value of the 0-digit are
79.88 units 926.7 hundreds
(hundreds) (tens) (ones) DECIMAL POINT (Tenths) (hundredths)
So you have six and 28 hundredths. If nearest tenth is 2 the number after it is an 8, therefore the 8 is rounded UP to 10 and the 2 becomes a three.