think of a number--double it--add 2--halve it--take away the number you first thought of------now you are all left with 1.---------HINT-ITS SOMETHING TO DO WITH THE NUMBER YOU ADD.--in this case, it was -2 if i had said add any other number  the answer would be half of that.
125653
because you are doing exactly the reverse after adding 2 as you did before! effectively all you are doing is halving 2.
477395
.5 + .5 + .25 + 1.25 = 2.5\n\nTwo and a half.\n\nI like it, very funny!
450032
Ok, your question makes absolutely no sense.  Why say we can only use 1 through 16, and then say we can only use 1?\nSome ways, assuming I translated your question correctly, would include 16 + 16 +1 +1, and 16 + 15 + 3.... There are almost an infinite number of ways to add to 34 with the numbers 1-16, so please rephrase your question.
504431
what it means is this 4 plus negative .01 and with the other it's 5 plus negative .04 its simple. if you know what it means and if you took notes look at them. it may help a little
437063
Dear Fifth Graders,\n\nI know you might find working with decimals kind of hard, and that dividing one decimal number by a second decimal number must be even harder. But, actually, it is quite easy if yo first convert the decimals to whole numbers.\n\nRule 1: To convert a decimal to a whole number, move the decimal point to the riight until you have a whole number. \n\nFor example: \n2.75 = 275 by moving the decimal point 2 places to the right.\n0.006 = 6 by moving the decimal point 3 places to the right.\n\nRule 2: When you divide one decimal number into another decimal number, you MUST move the decimal point the same number of places for both numbers.\n\nFor example, if you are dividing 2.75 by 0.006, you must move the decimal point 3 places in both numbers so the new problem becomes 2750 divided by 6. So you have changed the division of decimal numbers to division of whole numbers. This is a lot easier, don't you think?\n\nHere's another example: \nDivide .05 by .0001\nHere we have to move the decimal point 4 places to th right.\nThis gives 500 divided by 1 which is just 500. Easy, eh?\n\nRemember that if you have to move the decimal point mor places than there appears to be room for, simply add zerooes to get the necessary number of places. In the example above,\n.05 and .050, and .0500, and .0500000000 are all  the same number. So to move the decimal point 4 places to the right \nfor the number .05, we simply add 2 zeroes making it .0500 and now we can move the decimal point 4 places changing .05 to 500. \n\nHope this helps you to understand decimals better \n\nGood Luck
105111
jf rodrigues is correct to add 65. The others are putting in parentheses where none appear in the problem. They end up subtracting 65 instead of adding, and are getting answers that are too low by 130.\n\nThe wrong answers are obtained by people subtracting and even multiplying(!) 65 when they should be adding it.
483905
Gary, that's a good one, but one mistake...\nyou said that a=b, thus you cannot divide by (a-b) b/c that equals zero, and you cant divide by zero.
246633
So where's that starting point?  Either we start (yesterday) with Mary having $785.63 we subtract $57. and $125. for 603.63.  Then we add $57.25 for a total of 660.88 (B) \nOR\nwe start we $785.63 (today) anb subtract $57. and $125 for $603.63 (C).  The $57.25 doesn't matter cause Mary did that yesterday....
303855
There is no simple trick for the addition of two numbers. You will have to calcuate their actual value and then add them. So for you example you would have to go to 4 + 8 = 12.
266771
Assuming he had $x initially,\nHe spent half of it and $8 first. So he is left with (x/2)-8\nthen he spends half of what he had plus $8.\nThat makes it(((x/2)-8)/2)-8\nand this equals $7.\nSolving,x=$76
88136
Your subtraction always results in an answer whose digits add up to 9 or 18. When you circle one digit and give the remaining digits, the program adds the digits you give and subtracts the sum from 9 or 18, whichever would give one digit for the answer.\n\nThe example given, getting 5560 from the subtraction, cannot happen, and a good thing, too, because if you follow the example and remove one digit from 5560 and give in the rest, the program gets the missing digit wrong.\n\nThe program cannot allow you to circle "0" after your subtraction, because then the program wouldn't be able to know whether you circled a 0 or a 9. The rules could just as well have forbbidden you to circle 9; either 0 or 9 would do.
103679
>>Squaring half an even number and adding the odd number next to it gives the same result as one-fourth of the square of the even number next to it. Explain.<<\n\nx = even number\nx + 1 = "odd number next to it"\nx + 2 = "even number next to 'it' (odd number x + 1)"\n\n(x/2)^2 + (x + 1) ?= ((x + 2)^2)/4\n(x^2)/4 + x + 1 ?= (x^2 + 4x + 4)/4\n(x^2)/4 + x + 1 ?= (x^2)/4 + (4x)/4 + (4)/4\n(x^2)/4 + x + 1 = (x^2)/4 + x + 1\n\n*Also,* you need to prove it going in descending order, since "next to it" doesn't imply the numbers always ascend:\n\nx = even number\nx - 1 = "odd number next to it"\nx - 2 = "even number next to 'it' (odd number x - 1)"\n\n(x/2)^2 + (x - 1) ?= ((x - 2)^2)/4\n(x^2)/4 + x - 1 ?= (x^2 - 4x + 4)/4\n(x^2)/4 + x - 1 ?= (x^2)/4 - (4x)/4 + (4)/4\n(x^2)/4 + x - 1 <> (x^2)/4 - x + 1 -- (check your signs)\n\nI'm not sure that statement is true as written. It only works for numbers in ascending order.
147260
What math test do you take?  I'm in Algebra 1 and I only remember 1 question.  It's impossible.\n\nSomeone has a total of 100 coins in dimes and quarters.  The total value adds up to $14.05. How many quarters does she have?\n\nA) 27 (I chose this-it's a dollar off)\nB) 40\nC) 56\nD) 79 (I forget-it's way too high)\n\nWell, that's all I have.  Bye bye!\n\nThanks to the guy who solved that.  I won't get a zero now!
450452
2x-3... because 2x means twice a number, and if you want 3 less than that, you would subtract 3.
151832
8\ntake away o from top and you're left with o on bottom - half - nothing\nor i guess 10 could work, too (or any double digit ending in 0) take away the first number and you're left with 0
499024
1. (3/51 * 2/50 * 1/49) * (3/47 * 2/46) * 7!\n2. (3/51 * 2/50) * (3/48) * (3/46) * 45/47 * 7!\n3. (3/51 * 2/50 * 1/49) * (3/47) * 44/46 * 7!\n4. (3/51 * 2/50) * (3/48 * 2/47) * 45/46 * 7!\n5. (3/51) * (48/50 * 3/49) * (44/48 * 3/47) * 40/46 * 7!\n\nNote: As I read it, #2-#4 exclude the possibility of #1.  If you think #1 is a special case of the others, then add the value of #1 to the other three.  Likewise, as I read it, #5 excludes #2.
620950
Half of "one and a half" is three-quarters.  Twice "three-quarters" is "one and a half."\n\n... seems to me.