It is 8.0 : the trailing 0 is necessary to show that it has been rounded to the nearest tenths.
It is 8.70 - there is no work to show!
0.9%= 9/10 * 1%= 0.9 * 1%= 0.9%
It is 10.0, and the trailing 0 is required to show that the number is rounded to a tenth.
abc.def I use letters to show the meaning of placeholders in the Arabic decimal fraction system. "c" is the in units place. Five is just 5 on its own. "bc" is in the tens and the units places, 25 for example, twenty plus five. "abc" is in the hundreds place plus the tens place plus the units place. say 325. on the right hand side of the decimal place we start with ... "0.d" or the tenths position. so three tenths is 0.3 "0.de" would be a number of tenths plus a number of hundredths, say 0.38 JCF
It is 8.0 : the trailing 0 is necessary to show that it has been rounded to the nearest tenths.
37.0
To round the tenths you look at the hundredth column, which in this case is a 7. Since 7 is greater than 5 we round up, but since 9 can't round up anymore we have to round the ones column. Thus rounding 23.971 by the tenths = 24.0 (The zero is necessary to show that you've rounded the number by the tenths and not the ones.)
If 3.8 was rewritten to show tenths and hundredths?
Nine tenths of one percent = 0.009
0.9
Multiply two fifths by two to get a common denominator. Then you will have 4 tenths plus three tenths. then add straight across and you will get seven tenths.
Since 1864.
1.0
get a ruler
The reelection of Abraham Lincoln in 1864 showed that the war effort had turned in the North's favor. The election was between Lincoln and George B. McClellan.
2.80 (include the zero to show to what place you rounded)