Thing of it this way,
you are adding negativity, therefore you are taking away positivity, which is what the numbers you are working with are, when doing adding sums.
2048
42
4+1=5. Plus 4 equals 9. Plus 77685769844446473 equals 77685769844446482. Plus 3 equals 77685769844446485. Plus 8 equals 77685769844446493. Plus 1 equals 77685769844446494. Plus 9870998342523322424 equals 1064785604097768918. Plus 4 equals 1064785604097768922.
It is the property that equals plus equals are equals.
the answer is a
No.
89
If I am correct, 9 plus 7 equals 112.
96
144
26
42