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20 plus 4-21 plus 2 equals what?
26 - 21 = 5 or 24 - 23 = 1
What is 10 plus 9 plus 1 minus 1 plus 2 minus 2 plus 3 minus 1 plus 4 minus 4?
(10+9)+(1−1)+(2−2)+(3−1)+(4−4) = 21This is the same equation rewritten: (10+9)+(3−1) = 21This can be done as 1-1, 2-2, 4-4 cancel themselves out.
What is 1 over 3 plus 2 over 7?
1/3 + 2/7 = 7/21 + 6/21 = 13/21
What is 1 plus 2 plus 3 plus 4 plus 5 plus 6 equals?
21, sigh.
Two thirds plus one seventh plus four sixths equals?
2/3 + 1/7 + 4/6 = 14/21 + 3/21 + 14/21 = 31/21 = 1 10/21
What it 2 plus 1?
2+1= 21 joking, it is 3
20 plus 4-21 plus 2 equals what?
26 - 21 = 5 or 24 - 23 = 1
What is 10 plus 9 plus 1 minus 1 plus 2 minus 2 plus 3 minus 1 plus 4 minus 4?
(10+9)+(1−1)+(2−2)+(3−1)+(4−4) = 21This is the same equation rewritten: (10+9)+(3−1) = 21This can be done as 1-1, 2-2, 4-4 cancel themselves out.
What is 1 over 3 plus 2 over 7?
1/3 + 2/7 = 7/21 + 6/21 = 13/21
What is 1 plus 2 plus 3 plus 4 plus 6 plus 7 plus 12 plus 14 plus 21 plus 28 plus 42?
1 + 2 + 3 + 4 + 6 + 7 + 12 + 14 + 21 + 28 + 42 = 140
4 plus -1 -2 1?
The result obtain from the equation 4 plus -1 -21 is -18.
What is 1 plus 2 plus 3 plus 4 plus 5 plus 6 equals?
21, sigh.
Two thirds plus one seventh plus four sixths equals?
2/3 + 1/7 + 4/6 = 14/21 + 3/21 + 14/21 = 31/21 = 1 10/21
What is the name of the series 1 plus 1 plus 2 plus 3 plus 5 plus 8 plus 13 plus 21 plus 34 plus .........?
It's Fibonacci's
What is 1 plus 2 plus 3 plus 6 plus 7 plus 14 plus 21 plus 42 equals?
96
What is 1over 2 plus 1 over 3 times 1 over 7?
1/2 + 1/3 * 1/7 = 1/2 + 1/21 = 21/42 + 2/42 = 23/42
What is x2 plus x-5 equals 0?
x=1/2(-1-square root of 21) and x=1/2(square root of 21 -1)
