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Q: What is the sum of 1 plus 2 plus 4?

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1+1+2 = 4

26

Sum = 79*(79+1)/2 = 79*80/2 = 3160

The sum of the numbers given is 31. 1 + 2 + 4 + 8 + ... + 2n = 2n+1 - 1

25

the sum of 2 plus 2 is 4/2+2=44

The sum of 3x plus 2 and -4 plus 3 is 3x+1 if the equation is (3x+2)+(-4+3). If they are two separate questions, 3x+2 remains as itself while -4+3=-1.

The mater is that if you do 1+1=2 then just add the sum with its self, so you have 2+2=4 and 4 is the answer

The answer is 1830.

The sum of 1/2 and 4/8 is 1.

4 1/2

1 + 2 + 4 + ... + 2n = 2n+1 - 1

41

The sum of 2 1/2 and 5/3 is 4 1/6.

the sum of 2 plus 2 is 4/2+2=44

The sum of 2 1/2 and 1 3/4 is 4 1/4

plus indicates that it is a sum (not a difference): 1/4 + 2/4 = 3/4. You can just add the numerators, since the denominators are the same.

500,000,500,000 is the answer.

The sum is 6.

1+2+3+4.....+100 = 101*50= 5050

(n2 + n)/2 1+2+3+4+5+n= 15+n

If you add all the numbers from 1 to 98, the total is 4851.

Anything multiplied by zero is zero - no matter how complex the sum !

4

4 + 2 = 6