Question

Down the question isthere

Answer 1

(i) 0 + 1 - 2 + 3 - 4 + 5 - 6 + 7 - 8 + 9 = 5

(ii) 0 - 1 - 2 - 3 - 4 - 5 + 6 + 7 + 8 - 9 = -3