8+y is the sum of 8 and y
The sum of 1 + 8 is 9.
twenty one (21) is the sum of 12 and 9.
The sum of 8, 11 and 9 is 28.
The sum of 4 and 8 means: 4 + 8 = 12 so the answer is 12.
8. To find 'the sum of' something, is just to add them together really. Eg - The sum of 9 + 3 = 12.
It is: 12+9 = 21
They are: 8+9+10+12+14+15+16+18 = 102
18 and 1
9+12 = 21
3 and 9 Difference: 9-3=6 Sum: 9+3=12
9 x 3 = 27 9 + 3 = 12