i) Descending order: 0,-1,-6,-9,-10. Ascending order: -10,-9,-6,-1,0.
ii) Descending order: 10,6,5,-3,-6,-9. Ascending order: -9,-6,-3,5,6,10.
iii) Descending order: 2,0,-15,-20,-35. Ascending order: -35,-20,-15,0,2.

i) 1 ii) -6 -2 = -8 iii) 8 + 6 = 14 iv) -5 v) -23 +30 = 7 vi) -103 vii) 71 -10 -8 = 71 - 18 = 53 viii) -68 + 58 = -10

Temperature at 5 a.m = - 10°C After 6 hours it increased to 14°C so the temperature at 11 a.m = - 10°C + 14°C = 4°C

A fish was at 16 feet below the surface of sea means -16 feet and it went down another 17 feet So its position from surface is -16 + (-17) = -16 - 17 = - 33 ft

Profit means positive and Loss means negative Profit on Monday = + 250
Loss on Tuesday = - 120
Loss on Wednesday = - 180
Total amount = + 250 + (-120 ) + (-180) = 250 - 120 - 180 = 250 - 300 = -50 He got a loss of 50 rupees after 3 days.