[tex]2 \times 60 = 2 \times 6 \times 10 = 12 \times 10 = 120 \\ 8 \times 40 = 8 \times 4 \times 10 = 32 \times 10 = 320 \\ 3 \times 70 = 3 \times 7 \times 10 = 21 \times 10 = 210 \\ 5 \times 70 = 5 \times 7 \times 10 = 35 \times 10 = 30[/tex]
Sper că te-am ajutat! :)