165+11=165+10+1
=175+1
=176
353+19=353+10+9
=363+9
=372
139+29=139+20+9
=159+9
=164
765+39=765+30+9
=795+9
=804
235+199=235+100+90+9
=335+90+9
=425+9
434
375+299=375+200+90+9
=575+90+9
=665+9
=674
