What is a real-life situation in which you might roung decimals?
87435
Pretty much anything where you need to measure, except for engineering and architecture.  (Well, and science.)\n\nEasiest example; weigh that letter you are about to send.  It weighs .09283765 ounces, right?  Who cares?  It's "less than 2 ounces" and that's all that matters.
807970
move the decimal point two places to the right (or multiply by 100)\n\nso\n\n0.005049 becomes 0.5049 %
809077
I would assume that one of your .01s in column A is something like 0.012.\n\nChange your number  format to General and see what happens.
893737
depends on the degree of accuracy\n\nto the nearest 1 m it would be \n\ngreater than or equal to 159.5 and less than 160.5\n\nnote no equal to in the upper limit as 160.5 rounds to 161\n\nfor any other degree of accuracy use the same method but to the appropiate decimal place
483592
You use math everyday
216446
$1,000,000.00\nwithout decimal zeros:6\n(with decimal zeros:8)
282022
if .5 + .5 = .10 were true, then by the same logic, 5 + 5 = 1\n\nAnd that's obviously wrong.\n\n7.28 - .6 is obviously 6.68, because of place holding.\n\nwrite it like 7.28-.60, and it's easier.
721902
can you elaborate on that? what do you mean by simplify decimals? you can put decimals into fraction form and simplify that.
305502
a quarter and a nickel because if one of them is not a nickel then try the other. Hah ha!!
357242
Anytime you go from kilo (1000) to your base unit, you move the decimal by how many zeros you have.  In this instance you have 3 zeros, and since you a going from a bigger unit to a smaller unit, it's going to be a bigger number.  Thus you have to move the decimal to the right three spaces.
521751
or 4.5 using 4.47 rounding up is 4.5  or 4 like the other person said.. depends on what youre rounding up to.
905629
Divide the top by the bottom.  Put the decimal over 1.
945266
Does 0.9999999999999999999999999....(continued) = 1.0\n\nA great topic in maths which will actually interest people because the above statement is true.
602685
Not necessarily. If you can turn them into decimals, sometimes it's easier to compare them.\nFor instance, 4/8 = .5 and 5/9 = .55. Obviously 5/9 is a little larger, and you don't have to do all the math.
323492
Different states and towns have their own laws about that. Most places it's like 7 decimals. But you should check with your local city hall to find out exactly. Good luck!
983117
C 49.6%\n\n(or A with rounding to 0 decimal places/1 significant figure)
358099
0.43 & 0.0062\n\nDivide by 100