Răspuns :
(80-24):2=56:2=28 Cate timbre străine sunt ?
28+24=52 Cate timbre romanesti sunt ?
/------/ t străine
/------/ + 24 -/ t romanesti
total: 80 timbre
28+24=52 Cate timbre romanesti sunt ?
/------/ t străine
/------/ + 24 -/ t romanesti
total: 80 timbre
S|-----|
R|-----|-24-|
Cate timbre straine sunt?
(80-24):2=56:2=28
Cate timbre romanesti sunt?
28+24=52
R|-----|-24-|
Cate timbre straine sunt?
(80-24):2=56:2=28
Cate timbre romanesti sunt?
28+24=52