5/16 + 5/4 = 25/16 or 19/16
25 plus 21 plus 19 is equal to 65.
16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238
Instead of -25 plus - 16, think of it as -25 - 16. 25 mins 16 equals -41.
-25
-19 + 6 - 25 = -38
75 + 16 + 25 = 116
33 + 25 + 16 = 74
22 + 24 + 28 + 25 + 20 + 19 = 138
-41
25+16+12+42+20=115
I would say 19 as the square root of 9 is 3, plus 16, makes 19. I would assume the questioner expects many people to answer 5 which is the square root of the sum of 9 and 16.