a, \(996+45=996+4+41=1000+41=1041\)
b, \(37+198=2+35+198=200+35=235\)
a) 996 + 45 b) 37 + 198
=996+41+4 =2+35+198
=(996+4)+41 =(2+198)+35
=1000+41 =100+35
=1041 =135
a)996 + 45 = 996 + (41 + 4)
= (996 + 4) + 41
= 1000 + 41
= 1041
b)37 + 198 = (35 + 2) + 198
= (2 + 198) + 35
= 200 + 35
= 235