Răspuns :
[tex]1. \: \: 130 \times 3 = 390 \\ 2. \: \: 231 \times 3 = 693 \\ 3. \: \: 312 \times 3 = 936 \\ 4. \: \: 221 \times 4 = 884 \\ 5. \: \: 243 \times 2 = 486[/tex]
[tex]1. \: \: 130 \times 3 = 390 \\ 2. \: \: 231 \times 3 = 693 \\ 3. \: \: 312 \times 3 = 936 \\ 4. \: \: 221 \times 4 = 884 \\ 5. \: \: 243 \times 2 = 486[/tex]