Răspuns:
[tex]18 \times 8 = (10 \times 8) + (8 \times 8) = 80 + 64 = 144 \\ [/tex]
[tex]12 \times 5 = 10 \times 5 + 2 \times 5 = 50 + 10 = 60[/tex]
[tex]37 \times 6 = 30 \times6 + 7 \times 6 = 180 + 42 = 222[/tex]
[tex]9 \times 45 = (9 \times 40) + (9 \times 5) = 360 + 45 = 405[/tex]
[tex]36 \times 4 = (30 \times 4) + (6 \times 4) = 120 + 24 = 144[/tex]
[tex]13 \times 3 = (10 \times 3) + (3 \times 3) = 30 + 9 = 39[/tex]
