Eight hundred and twenty-four
abc
c=1/2a
b=1/2c
So
lowest is b so start with b=1
412 = 7
now make b=2
824 = 14
423
the answer for that is 18 1+8=9 18/2=9
84.42 or 42.21
63
3.5 million = 3500000 so 7 Seven digits (individually). Three digits (not counting repeats).
423
I think the answer is 612!1 (tens digit) which is odd is half of 2 (hundreds digit) and the sum is (6+1+2=9).
423
423
3221
by making them half
Truncation is an operation whereby a long decimal representation of a number is stopped after a given number of digits, taking no account of the digit which follows. This is different from rounding where the final digit retained may be increased by 1 if the following digits make a number which is greater than half a unit.
421 and 842
It is 875.It can be 875 or 885. Using the round-half-to-even method, as required by IEEE Standard 754, both would be rounded to 880.
the answer for that is 18 1+8=9 18/2=9
Eleven 1 + 1 = 2 1 x 1 = 1
42.21 or 84.42