sum = 2+4+ 6 might work.
6
The sum is 6.
6 - 4 = 2.
4 + 2 = 6
6
It is: 2*(6+4) = 20
6
10
-2
The difference, in a subtraction sum, is the answer to the sum. For example, the difference between 6 and 4 is equal to 2. 6 - 4 = 2.
Sum of 1st 2 terms, A2 = 2 + 4 = 6 Sum of 1st 3 terms, A3 = 2 + 4 + 6 = 12 Sum of 1st 4 terms A4 = 2 + 4 + 6 + 12 = 20 you can create a formula for the sum of the 1st n terms of this sequence Sum of 1st n terms of this sequence = n2 + n so the sum of the first 48 terms of the sequence is 482 + 48 = 2352