Respuesta :

soniboloni
68 + 53 is 121. Here's a tip: when you see a + - (-) change the signs add a positive instead of subtracting a negative. makes math 100 times easier
garydesir1
Hi there (+68) - (-53) = 68 + 53 so when you calculate that you will find 112. I hope that's help and if you have any questions please let me know.