Q: Why is 1 plus 1 equals 2 a sum?

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

no if 1 plus 1 equals 2 then 2 plus 2 equals 4.

9

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

12.

because the number are the same /example2 times 3 equals 6. 3 times 2 equals 6

Synthesis. 2 of something, plus 1 of something, plus 3 of something equals sum!! Maths

In any addition sum, such as 1 + 2 = 3, the components in the addition part of the sum are called the addends.

(xn+2-1)/(x2-1)

1+1+2 = 4

-6

1 plus 1 equals one fact

1 plus 1 equals 1 (in Boolean logic) 1 plus 1 equals 10 (in base 2)

a number equals 2

23 plus 16 plus 16 equals 55. This is an addition equation and addition is a math operation that represents the total sum of objects in a collection.

if (n%2==0) sum=n/2*(n+1); else sum=(n+1)/2*n;

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

2

2

5 is the sum. 2 and 3 are the addends.

This appears to be a number trick or joke. The answer is that 1 hour, plus 1 minute, plus 59 minutes, will equal 2 hours.

-3/2

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

1+2+4 = 7

2 + 1 = 3