what is a two digit  number with the two digit double the ones and both digits added up equals 12?
83993
84. so the possible numbers for ones is 0,1,2,3,4,5,6,7,8,9 obviously u can't choose more than 5 or 5 because when u double it it would be 3 digits. so 4,3,2,1 so try 4 if u double it =8 so 8+4=12. and 8 is double of 4.
769971
This is solvable, and you wrote it very well!\n\nThe key to setting this up is knowing that for any 2-digit number, you can write it as 10a + b.\n\nSo your problem states that a+b=9 (the sum of the tens digit and ones digit is 9), and it states that a=3b+1 (the tens digit is 1 more than 3 times the ones digit).\n\nSo now you have 2 equations in 2 unknowns, which you can easily solve for:\n\na + b = 9\na = 3b + 1\n\nSubstitute a = 3b + 1 into the first equation to get:\n\na + b = 9\n(3b + 1) + b = 9\n4b + 1 = 9\n4b = 8\nb = 2\n\nNow you can easily solve for a, which equals 7 since a+b=9.\n\nSo your 2-digit number is 72.\n\nCheck: 7+2=9\n7 = 1 + 3*2\n\nIt checks out, so our answer is correct!\n\n~ ♥ ~
531502
12408 = (2^3)*3*11*47\n\nso just pick all the combinations:\n1, 2, 4, 6, 8, 22, 24, 33, 44, 66, 88, 94, 132, 141, 264, 282, 517, 1551, 3102, 6204, 12408...there are probably more
959583
=1200*0.1*3/12+(1200)\n1230
277593
In your case use your fingers bye the way 2+2 = 4
425151
take the last digit of the number and multiply by the earlier digits to get the next answer\n369*2= 738\n73*8=584\n58*4=232\ntherefore next number will be 23*2=46
112973
103 people:\n\n00 to 99 is 100 unique two digit plus 3 duplicate\n(zero is a valid digit)
779216
Each digit is even\nEach digit is different\nThe number has 4 digits\nIt is divisible by 4.\nIt is not divisible by 8.\nIt is a square.\n\nYour answer must be: 6084\nIt is the square of 78.\nAll digits are even and different.\nIt is divisible by 4.\nIt is not divisible by 8
68157
Assuming that by "two digit number" it excludes numbers with preceding zero like 05, 06, etc...and also assuming that the number is not negative (probly not in the 3rd grade), then since 10 is the smallest two-digit number on the number line, the product of 10 times 10 (lowest 2-digit number) is 100. (10x10=100)
865627
Binary\n101=5\n1010=10\n111=15\n10100=20\n11001=25\n\nAlternate add 7 and 5\n5+7\n12+5\n17+7\n24+5\n29\n\nDouble first and second alternatly\n1*2=2\n16*2=32\n2*2=4\n32*2=64\n4\n64\n\nLast one ????
30526
If you mean (4597625/540978) + 943912 + (0.69*79386), then it's 998696.83\nIf you mean 4597625/[540978 + 943912 + (0.69*79386)], then it's 2.99
318521
two plus two =..... 2 points for me... THNX
1038063
If there was only one digit, there would be 10 (0-9)\nTwo digits, 100 (00-99)\nThree digits, 1000 (000-999)\n\nHey, there might be a pattern here\n\nSo 10 digits, 10,000,000,000 (0000000000-9999999999)
819558
Theres 7 choices for the first digit, 6 more for the second .. 2 for the sixth. So 7*6*5*4*3*2 = 5040.
1181393
Binary digits stand for powers of 2.  For example, 2^0 is 1, and 1 in binary is 1.  2 is equal to 2^1, so 2 is 10 in binary.  3 is 2^1 + 2^0, so it's 11 in binary.  \n\nSo the joke is really saying there are 2 types of people.  Now you fall into the former.  :-)\n\n*** There are two types of people, those who know binary and those who don't, now you fall into the former category of those who know.
420998
12\nunless i counted wrong
947463
When you double a number, you just multiply it by 2.\ny = 2x\nx is the original number and y is the number after it's been doubled.