A. a) 67+9=67+10-1=77-1=76
b) 128+99=128+100-1=228-1=227
c)3287+999=3287+1000-1=4287-1=4286
d)58+8=58+9-1=67-1=66
e)345+98=345+99-1=444-1=443
f)5498+998=5498+999-1=6497-1=6496
B. a)58+11=58+12-1=97-1=96
b)165+101=165+102-1=267-1=266
c) 3259+1001=3259+1002-1=4261-1=4260
d)79+12=79+13-1=92-1=91
e)542+102=542+103-1=645-1=644
f) 2685+1002=2685+1003-1=3688-1=3687
Sper că ţi-am fost de ajutor, succes în continuare!!!!
