Răspuns:
a). =67(47+53)=67x100=6700
b). =453(250+750)=453x1000=453000
c). =73(87+25-11)=73x101=7373
d). =83(26+24)-45x50=83x50-45x50=50(83-45)=50x38=1900
e). =579(1+399)-400x250=579x400-400x250=400(579-250)=400x329=131.600
f). =42(1+135-136)=42x0=0
Explicație pas cu pas:
