Question

1) - 2 - 5 = 2) 10 - (-2) = 3) -25 - 5 = 4) How are the three problems above different from this problem: -12 + 5

Answer 1

They’re all different because questions 1-3 is like adding. While question 4, you’re answering it as if you’re subtracting. So -12+5=-7.