Round-18,432 to the nearest hundred and thousand?
818037
Nearest hundred is 18,400 and thousand is 18,000
66274
Out of your suggestions you violate some rules of estimation. The closest the mind can get to is 456,000 and if to convert it to an estimate you might wanna think of 460,000.
327555
115 to 42 \nor 2.738 to 1
1176062
10^100 - 10^-100... That's pretty close.. hehe
32878
200\n\n(1,000,000/5,000=200)
793932
6.24 - - answer\n\nThe place value of 4 is in the hundredth.
108525
sorry, you asked it again. its 625
1110706
6 - Thousands\n2 - Hundreds\n5 - Tens\n2 - Ones\n\nIf you want to round to the nearest hundreds, then look at the number that comes before it. In this case, it is in the tens spot. That number is a 5. The rule for rounding is if the number is 5 or greater then you round up. If the number is 4 or lower, you round down.  Thus, the answer would be 6300.
625679
"to the nearest tenth" means your answer should have one digit after the decimal point.\n\n4.53 becomes 4.5\n3.444444 becomes 3.4\n2.3838383 becomes 2.4
925623
1.10\n\nthat's the nearest ten ...look..\n\n1.11 take away 1...would be 1.10...and that's the nearest 10 and if it was 1.45 the nearest ten would be 1.50..because when you come to a 5 you always round up not down.\n\n1.63 would be 1.60 because 1.60 is nearest to 63 than 70 would be.\n\n2.67 would be ..2.70 because it's nearest to 70.\n\nHope that's clear enough?
183810
If the domain is [100,999], you have 999-100+1=900 numbers to try.  If you divide a number by both 7 and 8, you can simply divide the number by 7*8=56 instead (I'm not sure if I can explain why this might be true.)  Basically, this means you have a 1/56 chance of a number having a remainder of 4 for both 7 and 8. 900 * 1/56 = 16.071, but since you can't have a part of a number that is a match, you can round that off to 16.
171094
5000                  AHHHHHHHHHHHHHH!\nIt is 4100!\nGreat Question!
400127
C  H   O\n.6  12   6\n\nWITHOUT DECIMAL POINT
761367
Around a thousand or more.
831090
Pick a number between 50 and 1000
949695
The correct answer is:\n\n2,432,902,008,176,640,000\n\nYour calculator probably rounded it all little saying your answer is 2.43 with 18 digits after the decimal place.  Genally you'll take the 18 digits as 0 unless some of it is specified originally.\n\nScientific notation is shown two ways:\n2.43 x 10^18\nOR\n2.43E18\n\nFor example\n500 can be stated as 5 x 10^2  OR  5E2\n44200 can be stated as 4.42 x 10^4  OR  4.42E4
810525
Move the decimal two places to the left.\n.3455