Question

Find
(a) 35 – (20)
(b) 72 – (90)
(c) (– 15) – (– 18)
(d) (–20) – (13)
(e) 23 – (– 12)
(f) (–32) – (– 40)

Answer 1

(a) \(35 – (20) = 35 - 20 = 15\)
(b) \(72 – 90 = -18\)
(c) \((- 15) – (- 18) = (-15) + (18) = 3\)
(d) \((- 20) – (13) = – (20 + 13) = – 33\)
(e)\( 23 – (- 12) = 23 + 12 = 35\)
(f) \((- 32) – (- 40) = (- 32) + 40 = 8\)