Watch closely:
-12 + 14 = +2
Perhaps you shouldn't try this at home.
14 + 12 = 26
-14 + (-12) = -26
1.4 + 1.2 = 2.6
14 + 12 + 34 = 60
12 + 14 + 3 = 29
14*12=168168+41=209
-14
25+12+14
14+12=26
12 x 12 + 14 = 158
6 + 13 + 2 + 12 + 7 + 14 = 54
The sum of 14 and -12 is 2.
The answer is 44
-14 + 2 = -12
4 + 8 + 12 + 16 + 14 + 28 + 37 = 119