what is (50+25+25)5+20?
78982
520.\n\nParentheses first:  50+25+25 = 100\n\nNext, multiplication:  100*5 = 500\n\nThen addition: 500+20 = 520
906355
35-55\n\n13-30\n\n12-28\n\n25-22\n\n32-5
38758
for 50 .5(10)(5) = 25\nfor 45 .5(9)(5) = 22.5\nfor 51 .5 (51)(1) = 25.5\nfor 70 .5(7)(10) = 35
277882
Cyanne is right, it can be + or - five.  \n\n5 x 5 = 25\n\n(-5) (-5) = 25
809670
5 + 5 + 5 ≠ 550\n\nI'm not sure if that was the solution you were looking for though.\n\nEdit: nice job sunset!
733308
_/45= 3_/5\n\n_/20= 2_/5\n\n_/500= 10_/5\n\n3+2+10=15\n\n15_/5
771554
(x+5)(x-5)\n(x)^2-(5)^2\n=x^2-25
857511
N=1/4+3/5\n(5+12)/20\n=17/20
313066
It is important to remember that fives, when multiplied by an even number, will give zero. There will always be more even numbers than multiples of five so we can use all factors of five. 5000 divided by 5 is 1000. There are 1000 zeros right now. 5000 divided by 25 is 200. There are 200 more zeros. 5000 divided by 125 is 40. 5000 divided by 625 is 8. 5000 divided by 3125 only is 1 whole number. There are 1249zeros coming from fives. \n\nThere are 1249 zeros at the end of 5,000!
824398
First do a prime factorization:\n250 / 2 = 125\n125 / 5 = 25\n25 / 5 = 5\n5 / 5 = 1\n\nSo 250 = 2 x 5 x 5 x 5\n\nNow do all the combinations:\n1 = 1\n2 = 2\n5 = 5\n2 x 5 = 10\n5 x 5 = 25\n2 x 5 x 5 = 50\n5 x 5 x 5 = 125\n2 x 5 x 5 x 5 = 250\n\nSo the positive factors of 250 are:\n1, 2, 5, 10, 25, 50, 125, 250\n\n(Note: Technically -1, -2, -5, -10, -25, -50, -125 and -250 are factors too but I assume they only want positive factors.)
264673
Let x = # of 20's\ny = # of 50's\n\nx + y = 32\n20x + 50y = 1000 or\n2x + 5y = 100\n\nfrom the first equation, we know that x = 32 - y. Simply substitute this to the remaining equation and solve for the value of y.\n\n2(32 - y) + 5y = 100\n64 - 2y + 5y = 100\n3y = 36\ny = 12\n\nThe answer is 12 ^_^
1062229
Technically there are only 4 answers that will work, and they all rely on parentheses to modify the natural precedence rules:\n\n(5+5/5)*5\n(5/5+5)*5\n5*(5+5/5)\n5*(5/5+5)\n\nAs you can see they are all variations on (5 + 1) * 5, where you use 5/5 = 1.  So there is really just one answer.\n\nYou can easily solve problems like this yourself using the link below...\n\nFor example, can you make 24 using 3, 3, 8, 8?  Try it before you cheat... also, note that the solver allows % (mod) as an operator, so you may have to filter out those results.
797290
10, 22\n11, 25\n12, 28
576115
20 divided by 4 equals 5.
210767
20(1+2+3.....250) = 20 x (1+250) x 250 / 2 = \n\n20 x 251 x 250 /2 = 627,500
1171599
.(–2.5)(20) = -50\n\narithmetic, not algebra
635110
For doing squares of numbbers ending with 5, here it is\n\ntake the numbers before 5 and multiply it by its next number and write product followed by 25 e.g.\n65*65 = (6*(6+1)) and 25 = 6*7 and 25 = 4225