std 6 Integers Exercise 6.3

Integers Exercise 6.3 1). Find (a) 35 – (20)                                      (b) 72 – (90) (c) (– 15) – (– 18)                               (d) (–20) – (13) (e) 23 – (– 12)                                   (f) (–32) – (– 40) Answer: (a) 35 – (20)      35 – (20) = 35 – 20                    = 15                                       (b) 72 […]