Răspuns :
|--------------|---------------|---------------|
|--------------|
460:4=115
115×3=345 primul
115 all doilea
|--------------|
460:4=115
115×3=345 primul
115 all doilea
Se rezolva prin segmente
a+b=460
a= _ (un segment)
b= _ _ _ _ (4 segmente)
460:5=92
a=92
b=92x4=368
a+b=460
a= _ (un segment)
b= _ _ _ _ (4 segmente)
460:5=92
a=92
b=92x4=368