Evaluate each of the following:
(a) (–30) ÷ 10
(b) 50 ÷ (–5)
(c) (–36) ÷ (–9)
(d) (– 49) ÷ (49)
(e) 13 ÷ [(–2) + 1]
(f) 0 ÷ (–12)
(g) (–31) ÷ [(–30) + (–1)]
(h) [(–36) ÷ 12] ÷ 3
(i) [(– 6) + 5)] ÷ [(–2) + 1]
(a) We have,
(-30) ÷ 10
= 
= - 3
(b) We have,
50 ÷ (-5)
= 
= - 10
(c) We have,
(-36) ÷ (-9)
= 
= 4
(d) We have,
(-49) ÷ 49
= 
= - 1
(e) We have,
13 ÷ [(-2) + 1]
= 13 ÷[-2 + 1]
= 13 ÷ (-1)
= 
= - 13
(f) We have,
0 ÷ (-12)
= 
= 0
(g) We have,
(-31) ÷ [(-30) + (-1)]
= (-31) ÷ [-30 – 1]
= (-31) ÷ (-31)
= 
= 1
(h) We have,
[(-36) ÷ 12] ÷ 3
= 
÷ 3
= (-3) ÷ 3
= 
= - 1
(i) We have,
[(-6) + 5)] ÷ [(-2) + 1]
= [-6 + 5] ÷ [-2 + 1]
= (-1) ÷ (-1)
= 
= 1
5