Afla numerele care sunt: 50,70,90;
![Afla Numerele Care Sunt 507090 class=](https://ro-static.z-dn.net/files/d53/d5b58e20bfc923770c3b1f8dc8956f7a.jpg)
Răspuns:
a) 50:10=5
70:10=7
90:10=9
b) 50-10=40
70-10=60
90-10=80