Question 1 (e)
Find:
23 – (–12)
23 – (–12) = 23 + 12 = 35
Find the sum of the series 131+13+231+3+13+23+331+3+5+−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−12terms
(a) 35 − (20) (b) 72 − (90)
(c) (− 15) − (− 18) (d) (− 20) − (13)
(e) 23 − (− 12) (f) (− 32) − (− 40)